No covers yet
Issues
- #18 October 1986 [518] 18 October 1986
- #18 September 1982 [305] 18 September 1982
- #19 April 1980 [184] 19 April 1980
- #19 April 1986 [492] 19 April 1986
- #19 August 1989 [666] 19 August 1989
- #19 December 1981 [266] 19 December 1981
- #19 December 1987 [579] 19 December 1987
- #19 December 1992 [839] 19 December 1992
- #19 February 1977 [22] 19 February 1977
- #19 February 1983 [327] 19 February 1983
- #19 January 1980 [171] 19 January 1980
- #19 January 1985 [427] 19 January 1985
- #19 January 1991 [740] 19 January 1991
- #19 July 1980 [192] 19 July 1980
- #19 July 1986 [505] 19 July 1986
- #19 June 1982 [292] 19 June 1982
- #19 March 1977 [26] 19 March 1977
- #19 March 1983 [331] 19 March 1983
- #19 March 1988 [592] 19 March 1988
- #19 May 1979 [136] 19 May 1979
- #19 May 1984 [392] 19 May 1984
- #19 May 1990 [705] 19 May 1990
- #19 November 1977 [61] 19 November 1977
- #19 November 1983 [366] 19 November 1983
- #19 November 1988 [627] 19 November 1988
- #19 October 1985 [466] 19 October 1985
- #19 October 1991 [779] 19 October 1991
- #19 September 1981 [253] 19 September 1981
- #19 September 1987 [566] 19 September 1987
- #19 September 1992 [826] 19 September 1992
- #20 April 1985 [440] 20 April 1985
- #20 April 1991 [753] 20 April 1991
- #20 August 1977 [48] 20 August 1977
- #20 August 1983 [353] 20 August 1983
- #20 August 1988 [614] 20 August 1988
- #20 December 1980 [214] 20 December 1980
- #20 December 1986 [527] 20 December 1986
- #20 February 1982 [275] 20 February 1982
- #20 February 1988 [588] 20 February 1988
- #20 February 1993 [847] 20 February 1993
- #20 January 1979 [119] 20 January 1979
- #20 January 1990 [688] 20 January 1990
- #20 July 1985 [453] 20 July 1985
- #20 July 1991 [766] 20 July 1991
- #20 June 1981 [240] 20 June 1981
- #20 June 1987 [553] 20 June 1987
- #20 June 1992 [813] 20 June 1992
- #20 March 1982 [279] 20 March 1982
- #20 March 1993 [851] 20 March 1993
- #20 May 1978 [87] 20 May 1978
- #20 May 1989 [653] 20 May 1989
- #20 November 1976 [9] 20 November 1976
- #20 November 1982 [314] 20 November 1982
- #20 October 1979 [158] 20 October 1979
- #20 October 1984 [414] 20 October 1984
- #20 October 1990 [727] 20 October 1990
- #20 September 1980 [201] 20 September 1980
- #20 September 1986 [514] 20 September 1986
- #21 April 1979 [132] 21 April 1979
- #21 April 1984 [388] 21 April 1984
- #21 April 1990 [701] 21 April 1990
- #21 August 1982 [301] 21 August 1982
- #21 December 1985 [475] 21 December 1985
- #21 December 1991 [788] 21 December 1991
- #21 February 1981 [223] 21 February 1981
- #21 February 1987 [536] 21 February 1987
- #21 January 1978 [70] 21 January 1978
- #21 January 1984 [375] 21 January 1984
- #21 January 1989 [636] 21 January 1989
- #21 July 1979 [145] 21 July 1979
- #21 July 1984 [401] 21 July 1984
- #21 July 1990 [714] 21 July 1990
- #21 June 1986 [501] 21 June 1986
- #21 March 1981 [227] 21 March 1981
- #21 March 1987 [540] 21 March 1987
- #21 March 1992 [800] 21 March 1992
- #21 May 1977 [35] 21 May 1977
- #21 May 1983 [340] 21 May 1983
- #21 May 1988 [601] 21 May 1988
- #21 November 1981 [262] 21 November 1981
- #21 November 1987 [575] 21 November 1987
- #21 November 1992 [835] 21 November 1992
- #21 October 1978 [109] 21 October 1978
- #21 October 1989 [675] 21 October 1989
- #21 September 1985 [462] 21 September 1985
- #21 September 1991 [775] 21 September 1991
- #22 April 1978 [83] 22 April 1978
- #22 April 1989 [649] 22 April 1989
- #22 August 1981 [249] 22 August 1981
- #22 August 1987 [562] 22 August 1987
- #22 August 1992 [822] 22 August 1992
- #22 December 1979 [167] 22 December 1979
- #22 December 1984 [423] 22 December 1984
- #22 December 1990 [736] 22 December 1990
- #22 February 1986 [484] 22 February 1986
- #22 February 1992 [796] 22 February 1992
- #22 January 1977 [18] 22 January 1977
- #22 January 1983 [323] 22 January 1983
- #22 July 1978 [96] 22 July 1978
- #22 July 1989 [662] 22 July 1989