| Covers listed |
|
| 1966: | Fall, |
| 1978: | Spring, |
| 1986: | Vol 36 No 1Summer, Vol 36 No 2Winter, |
| 1987: | Vol 37 No 1Spring, Vol 37 No 2Summer, Vol 37 No 3Fall, Vol 37 No 4Winter, |
| 1988: | Vol 38 No 1Spring, Vol 38 No 2Summer, Vol 38 No 4Winter, |
| 1989: | Vol 39 No 1Spring, Vol 39 No 2Summer, Vol 39 No 3Fall, Vol 39 No 4Winter, |
| 1990: | Vol 40 No 1Spring, Vol 40 No 2Summer, Vol 40 No 3Fall, Vol 41 No 1Winter, |
| 1991: | Vol 41 No 2Spring, Vol 41 No 3Summer, |
| 2002: | #209 Vol 53 # 1/Winter, |
| 2003: | #210 Vol 53 # 2/Spring, #211 Vol 53 # 3/Summer, #212 Vol 53 # 4/Fall, #213 Vol 54 # 1/Winter, |
| 2004: | #214 Vol 54 # 2/Spring, #215 Vol 54 # 3/4/Summer, #216 Vol 55 # 1/Winter, |
| 2005: | #217 Vol 55 # 2/Spring, #218 Vol 55 # 3/Summer, #219 Vol 55 # 4/Fall, |
| 2006: | #220 Vol 56 No 1/ , #221 Vol 56 # 2/Spring, #222 Vol 56 # 3/Summer, #223 Vol 56 # 4/Fall, |
| 2007: | #224 Vol 57 # 1/January/February/March, #225 Vol 57 # 2/April/May/June, #226 Vol 57 # 3/July/August/September, #227 Vol 57 # 4/ October/November/December, |
| 2008: | #228 Vol 58 # 1/January/February/March, #229 Vol 58 # 2/April/May/June, #230 Vol 58 # 3/July/August/September, #231 Vol 58 # 4/October/November/December, |
| 2009: | #232 Vol 59 # 1/January/February/March, #233 Vol 59 # 2/April/May/June, #234 Vol 59 # 3/July/August/September, #235 Vol 59 # 4/October/November/December, |
| 2010: | #236 Vol 60 # 1/January/February/March, #237 Vol 60 # 2/June/July, #238 Vol 60 # 3/August/September, #239 Vol 60 # 4/December, |
| 2011: | #240 Vol 61 # 1/March/April/May, #241 Vol 61 # 2/June/July/August, #242 Vol 61 # 3/September/October/November, #243 Vol 61 # 4/December, |
| 2012: | #244 Vol 62 # 1/March/April/May, #245 Vol 62 # 2/June/July/August, #246 Vol 62 # 3/September/October/November, #247 Vol 62 # 4/December, |
| 2013: | #248 Vol 63 # 1/March/April/May, #249 /Summer, #250 Vol 63 # 3/September/October/November, December, |
| 2014: | #1 , #2 Vol 64/ , |
| 2015: | #3 / , #4 / , |
| 2016: | #1 , #2 , #3 / , #4 / , |
| 2017: | #3 / , #4 / , #1 / , |
| 2018: | , #3 / , |
| 2019: | , |
| 2021: | July/September, October/December, |
| 2022: | #2 / January/March, Special , #3 / April/June, #4 / July/September, October/December, |
| 2023: | January/March, April/June, July/September, |
| 2024: | April/June, October/December, |
| 2025: | January/March, April/June, July/September, October/December, |
| 2026: | April, |
