Issues
#1 #1 June 1974
#2 #2 August 1974
#3 #3 September 1974
#4 #4 October 1974
#5 #5 December 1974
#6 #6 February 1975
#7 #7 April 1975
#8 #8 June 1975
#9 #9 August 1975
#10 #10 October 1975
#11 #11 December 1975
#12 #12 February 1976
#13 #13 April 1976
#14 #14 May 1976
#15 #15 June 1976
#16 #16 July 1976
#17 #17 August 1976
#18 #18 September 1976
#19 #19 October 1976
#20 #20 December 1976
#21 #21 February 1977
#22 #22 April 1977
#23 #23 June 1977
#24 #24 August 1977
#25 #25 October 1977
#26 #26 December 1977
#27 #27 February 1978
#28 #28 April 1978
#29 #29 June 1978
#30 #30 August 1978
#31 #31 October 1978
#32 #32 December 1978
#33 #33 February 1979
#34 #34 April 1979
#35 #35 June 1979
#36 #36 August 1979
#37 #37 October 1979
#38 #38 December 1979
#39 #39 February 1980
#40 #40 April 1980
#41 #41 June 1980
#42 #42 August 1980
#43 #43 October 1980
#44 #44 December 1980
#45 #45 February 1981
#46 #46 April 1981
#47 #47 June 1981
#48 #48 August 1981
#49 #49 October 1981
#50 #50 December 1981
#51 #51 February 1982
#52 #52 April 1982
#53 #53 June 1982
#54 #54 August 1982
#55 #55 October 1982
#56 #56 December 1982
#57 #57 February 1983
#58 #58 April 1983
#59 #59 June 1983
#60 #60 August 1983
#61 #61 October 1983
#62 #62 December 1983
#63 #63 February 1984
#64 #64 April 1984
#65 #65 June 1984
#66 #66 August 1984
#67 #67 October 1984
#68 #68 December 1984
#69 #69 February 1985
#70 #70 April 1985
#71 #71 June 1985
#72 #72 August 1985
#73 #73 October 1985
#74 #74 December 1985
#75 #75 February 1986
#76 #76 April 1986
#77 #77 June 1986
#78 #78 August 1986
#79 #79 October 1986
#80 #80 December 1986
#81 #81 February 1987