APA (7th ed.) Citation

Grau, G. (1993). Hidden Holocaust? Gay and lesbian persecution in Germany 1933-45. London: Cassell.

Chicago Style (17th ed.) Citation

Grau, Günter. Hidden Holocaust? Gay and Lesbian Persecution in Germany 1933-45. London: Cassell, 1993.

MLA (8th ed.) Citation

Grau, Günter. Hidden Holocaust? Gay and Lesbian Persecution in Germany 1933-45. London: Cassell, 1993.

Warning: These citations may not always be 100% accurate.