| Covers listed |
|
| 1946: | #1 /April, #2 /July, #3 /September, Vol 1 No 4 December, |
| 1947: | Vol 1 No 5 November, |
| 1948: | Vol 1 No 6 March, Vol 2 No 1May, Vol 2 No 2 July, Vol 2 No 3September, Vol 2 No 4November, |
| 1949: | Vol 2 No 5January, Vol 2 No 6March, Vol 3 No 1 May, Vol 3 No 2July, Vol 3 No 3 September, Vol 3 No 4 November, |
| 1950: | Vol 3 No 5January, Vol 3 No 6March, Vol 3 No 7May, Vol 4 # 1July, Vol 4 # 2September, Vol 4 # 3November, |
| 1951: | Vol 4 # 4 January, March, Vol 4 # 6May, Vol 5 No 1July, Vol 5 No 2September, Vol 5 No 3November, |
| 1952: | Vol 5 No 4 January, Vol 5 No 5 March, Vol 5 No 6 May, Vol 6 No 1 July, Vol 6 No 2September, Vol 6 No 3November, |
| 1953: | Vol 6 No 4January, Vol 6 No 5 March, Vol 6 No 6May, Vol 7 No 1 July, Vol 7 No 2September, Vol 7 No 3November, |
| 1954: | Vol 7 No 4January, Vol 7 No 5 March, Vol 8 # 1July, September, November, |
| 1955: | January, March, April, June, August, September, October, November, December, |
| 1956: | January, February, April, June, August, October, December, |
| 1957: | February, Vol 11 # 4April, June, July, August, October, December, |
| 1958: | February, May, July, September, November, |
| 1959: | Vol 13 # 1January, March, May, July, September, November, |
| 1960: | January, March, May, July, September, November, |
| 1961: | January, March, May, July, September, November, |
| 1962: | January, March, May, July, September, November, |
| 1963: | January, March, Vol 16 No 9 May, July, Vol 16 No 11 September, November, |
| 1964: | January, March, May, July, September, Vol 17 No 6 November, |
| 1965: | January, March, May, Vol 15 No 10 July, September, November, |
| 1966: | January, March, May, July, September, November, |
| 1967: | January, March, May, June, July, November, |
| 1968: | January, March, May, August, October, December, |
| 1969: | February, April, October, December, |
| 1970: | February, April, June, November, |
| 1971: | March, June, |
| 1973: | March, May, July, |
