Marcus, E. (1993). Is it a choice?: Answers to 300 of the most frequently asked questions about gays and lesbians. HarperSanFrancisco.
Чикаго стиль цитування (17-те видання)Marcus, Eric. Is It a Choice?: Answers to 300 of the Most Frequently Asked Questions About Gays and Lesbians. San Francisco: HarperSanFrancisco, 1993.
Стиль цитування MLA (8-ме видання)Marcus, Eric. Is It a Choice?: Answers to 300 of the Most Frequently Asked Questions About Gays and Lesbians. HarperSanFrancisco, 1993.
Попередження: стилі цитування не завжди правильні на всі 100%.