Greif, M. (1982). The gay book of days: An evocatively illustrated who's who of who is, was, may have been, probably was, and almost certainly seems to have been gay during the past 5,000 years (1. Auflage.). Lyle Stuart.

Greif, Martin. The Gay Book of Days: An Evocatively Illustrated Who's Who of Who Is, Was, May Have Been, Probably Was, and Almost Certainly Seems to Have Been Gay During the Past 5,000 Years. 1. Auflage. Secaucus: Lyle Stuart, 1982.

Greif, Martin. The Gay Book of Days: An Evocatively Illustrated Who's Who of Who Is, Was, May Have Been, Probably Was, and Almost Certainly Seems to Have Been Gay During the Past 5,000 Years. 1. Auflage. Lyle Stuart, 1982.