We sent out this flier/mailer in 1975. You can read about it here:
Please note that the description of DYKE #2 says "future issues will carry stories on bitch sexuality..." We were talking about dogs. It would never have occurred to us to use the word "bitch" to refer to human females. Today, however, we'd have to be much clearer. And still, we'd never use the word "bitch" to refer to human females.