Marcus, E. (1993). It is a choice?: Answers to 300 of the most frequently asked questions about gays and lesbians / Eric Marcus (1. Auflage.). HarperSanFrancisco.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMarcus, Eric. It Is a Choice?: Answers to 300 of the Most Frequently Asked Questions About Gays and Lesbians / Eric Marcus. 1. Auflage. San Francisco: HarperSanFrancisco, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMarcus, Eric. It Is a Choice?: Answers to 300 of the Most Frequently Asked Questions About Gays and Lesbians / Eric Marcus. 1. Auflage. HarperSanFrancisco, 1993.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.