| Covers listed | |
| 1962: | June, August, September, October, November, December, |
| 1963: | January, February/March, April, May, |
| 1964: | March, October, November, |
| 1965: | January, June, August, September, November, December, |
| 1966: | January, March, April, May, July, August, September, October, November, |
| 1967: | January, February, March, July, August, September, Vol 6 # 5November, |
| 1968: | March, April, June, July, August, October, |
| 1969: | January, Vol 7 # 15August, Vol 7 # 17October, December, |
| 1970: | June, |
