Old school (pre-internet) hookups and such

I'm super interested in reading about gay culture when there was no internet and very little sympathy for gays. Everything about this article is amazing, including the pictures of the hustlers in the 1960s waiting for their clients.Are there some good books about this? I read City of Night and loved it, but I want a 60s/70s version. I'd like to read about what was so gay about the YMCA that it inspired the Village People song. What it was like to live in San Francisco in the 70s. How would a newcomer to town learn how to meet guys? Etc.Any recommendations?