| Covers listed |
|
| 1951: | #1 /Fall, |
| 1952: | #2 / September, |
| 1953: | March, #4 /May, July, August, September, October, November, December, |
| 1954: | January, February, March, April, Vol 2 # 3May, June, July, August, September, October, November, December, |
| 1955: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1956: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1957: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1958: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1959: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1960: | January, Vol 7 No 11 February, March, April, May, June, July, August, September, October, November, December, |
| 1961: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1962: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1963: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1964: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1965: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1966: | January, February, March, April, May, June, Vol 16 No 12 July, August, September, October, November, December, |
| 1967: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1968: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1969: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1970: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1971: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1972: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1973: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1974: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1975: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1976: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1977: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1978: | January, February, March, April, May, June, July, August, September, October, November, |
| 1979: | January, February, March, April, May, June, July, August, September, November, |
| 1980: | February, April, |
