Kennedy, H. C. (1988). Ulrichs: The life and works of Karl Heinrich Ulrichs ; pioneer of the modern gay movement / Hubert Kennedy (1. Auflage.). Alyson.
Lua i Stíl Chicago (17ú heag.)Kennedy, Hubert C. Ulrichs: The Life and Works of Karl Heinrich Ulrichs ; Pioneer of the Modern Gay Movement / Hubert Kennedy. 1. Auflage. Boston: Alyson, 1988.
Lua MLA (8ú heag.)Kennedy, Hubert C. Ulrichs: The Life and Works of Karl Heinrich Ulrichs ; Pioneer of the Modern Gay Movement / Hubert Kennedy. 1. Auflage. Alyson, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.