Duberman, M. B. (1991). About time: Exploring the gay past / Martin Duberman (Revised and extended edition, [Nachdruck].). Meridian.
Chicago-viite (17. p.)Duberman, Martin B. About Time: Exploring the Gay Past / Martin Duberman. Revised and extended edition, [Nachdruck]. New York [u.a.]: Meridian, 1991.
MLA-viite (8. p.)Duberman, Martin B. About Time: Exploring the Gay Past / Martin Duberman. Revised and extended edition, [Nachdruck]. Meridian, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.