This issue is a variant of Wonder Woman (DC, 1942 series) #273 [Direct].
On-sale date from copyright registration. Len's Line-Up in November 1980 issues has on-sale date of August 11.
-possible cameo of Bella Abzug in the bottom right corner of page 12
-last issue, Diana Prince had her hair down before changing to Wonder Woman, but when she reappears as Diana Prince here, moments later, she has her hair in a bun
-Diana Prince and Etta Candy decide to share an apartment
-Wonder Woman and Steve have their first date; she wears a blue cape over her costume