| Covers listed | |
| 1970: | #1 Vol 1 # 1, Vol 1 No 2 , #3 Vol 1 # 3, #4 Vol 1 # 4, #5 Vol 1 #5, #6 Vol 1 No 6, #7 Vol 1 # 7, #8 Vol 1 No 8/ , #9 Vol 1 # 9, Vol 1 No 10 , |
| 1971: | Vol 2 No 1, Vol 2 No 2 , Vol 2 # 4, Vol 2 No 5 May, Vol 2 No 6, Vol 2 # 7, Vol 2 # 8, Vol 2 No 3 , Vol 2 No 9 , |
| 1972: | Vol 3 # 1, Vol 3 No 2, Vol 3 # 3, Vol 3 No 6, Vol 3 No 5 , |
| 1973: | Vol 4 # 12, |
| 1974: | Vol 5 No 1, |
| 1975: | #2 / , |
