Gezondheidsgids voor homosexuelen

Fonds Suzan Daniel (FSD)
By Fenwick, R.D., Tulner, H.J.P., Pillard, Richard C., van Slangenburg, Henk
Date 1979

Sexual orientation and cognitive abilities

Fonds Suzan Daniel (FSD)
By Tuttle, Gordon E., Pillard, Richard C.
Published in Homosexuality and psychology, psychiatry and counseling