Same-Sex Dynamics Among Nineteenth-Century Americans: A ...
D. Michael Quinn
1991, 60-61; J. Michael Bailey and Richard C. Pillard, "A Genetic Study of Male Sexual Orientation," Archives of General Psychiatry 48 (Dec. 1991): 1089-96; " Among Twin Men," U.S. News and World Report, 30 Dec. 1991, 32; John A. W. ...