| Covers listed |
|
| 1966: | #6 / , |
| 1970: | Spring, |
| 1973: | Vol 13 # 1, |
| 1979: | Vol 19 No 1Fall, |
| 1983: | Vol 22 #3Spring, |
| 1985: | Vol 25 No 1Fall, |
| 1987: | , |
| 1988: | Vol 27 #3Spring, Vol 28 #1Fall, |
| 1989: | Vol 28 #3Spring, Vol 29 No 1Fall, |
| 1992: | Vol 31 No 3Spring, Vol 32 No 2Winter, |
| 1993: | Vol 32 #4Summer, |
| 1995: | Vol34 #4, |
| 1996: | Vol 35 #2, Vol 35 #3, Vol36 #1, #142 Vol 36 # 2/Winter, |
| 1997: | #143 Vol 36 # 3/Spring, #144 Vol 36 # 4/Summer, #145 Vol 37 # 1/Fall, #146 Vol 37 No 2/Winter, |
| 1998: | #147 Vol 37 No 2/Spring, #148 Vol 37 No 4/Summer, #149 Vol 38 No 1/Fall, #150 Vol 38 No 2/Winter, |
| 1999: | #151 Vol 38 No 3/Spring, #152 Vol 38 No 4/Summer, #153 Vol 39 # 1/Fall, #154 Vol 39 # 2/Winter, |
| 2000: | #155 Vol 39 # 3/Spring, #156 Vol 39 No 4/Summer, #157 Vol 40 # 1/Fall, #158 Vol 40 # 2/Winter, |
| 2001: | #159 Vol 40 # 3/Spring, #160 Vol 40 # 4/Summer, #161 Vol 41 # 1/Fall, #162 Vol 41 No 2/Winter, |
| 2002: | #163 Vol 41 # 3/Spring, #164 Vol 41 # 4/Summer, #165 /Fall, #166 Vol 42 # 2/Winter, |
| 2003: | #167 Vol 42 # 3/Spring, #168 Vol 42 # 4/Summer, #169 Vol 43 # 1/Fall, #170 Vol 43 # 2/Winter, |
| 2004: | #171 Vol 43 # 3/Spring, #172 Vol 43 # 4/Summer, #173 Vol 44 # 1, |
| 2005: | #174 Vol 44 # 2/April, #175 Vol 44 # 3/June, #176 Vol 44 # 4/August, #177 Vol 45 No 1/Fall, #178 Vol 45 # 2/Winter, |
| 2006: | #179 Vol 45 # 3/Spring, #180 Vol 45 # 4/Summer, #181 Vol 46 # 1/Fall, #182 Vol 46 # 2/Winter, |
| 2007: | #183 Vol 46 # 3/Spring, #184 Vol 46 # 4/Summer, #185 Vol 47 # 1/Fall, #186 Vol 47 # 2/Winter, |
| 2008: | #187 Vol 47 # 3/Spring, #188 Vol 47 # 4/Summer, #189 Vol 48 # 1/Fall, #190 Vol 48 # 2/Winter, |
| 2009: | #191 Vol 48 # 3/Spring, #192 Vol 48 # 4/Summer, #193 Vol 49 # 1/Fall, #194 Vol 49 # 2/Winter, |
| 2010: | #195 Vol 49 # 3/Spring, #196 Vol 49 # 4/Summer, #197 Vol 50 # 1/Fall, #198 Vol50#2/Winter, |
| 2011: | #199 Vol50#3/Spring, #200 Vol50#4/Summer, #201 Vol 51 # 1/Fall, |
| 2012: | #202 Vol 51 # 2, #203 Vol 51 # 3, #204 Vol 51 # 4, #205 Vol 52 # 1, |
| 2013: | #206 /Vol52 #2, #207 /Vol52 #3, #208 /Vol52 #4, #209 /Vol 53 #1, |
| 2014: | Vol 53 No 3Spring, Vol 53 No 4Summer, Vol 54 No 1Fall, Vol 54 No 2Winter, #2 , |
| 2015: | Vol 54 No 3Spring, Vol 54 No 4Summer, Vol 55 No 1Fall, Vol 55 No 2Winter, |
| 2016: | Vol 55 No 3Spring, Vol 55 No 4Summer, Fall, Vol 56 No 1Fall, Vol 55 No 2Winter, |
| 2017: | Spring, Vol 56 No 3Spring, Vol 56 No 4Summer, Vol 57 No 1Fall, Winter, Vol 56 No 2Winter, Vol 57 No 2Winter, |
| 2018: | Spring, Vol 57 No 3Spring, Vol 57 No 4Summer, Vol 57 No 2Winter, |
