| Covers listed | |
| 1956: | Vol 1 No 7 November, |
| 1957: | January, February, March, Vol 1 # 12April, July, August, September, |
| 1958: | May, August, November, |
| 1959: | April, Vol 4 No 4 May, July, December, |
| 1961: | June, October, |
| 1962: | February, May, June, Vol 9 # 5August, October, |
| 1963: | Vol 10 # 3April, August, Vol 10 No 7 November, |
| 1964: | Vol 11 No 1 March, April, June, December, |
