Coital interlocking
Subtitle: a physiological discovery
By: by Marie Carmichael Stopes
Series: C.B.C. bulletin -- no. 2
Publisher: Mothers' Clinic for Constructive Birth Control
Published: 1930
Place of publication: London
Language: eng
Subjects: Human Fertility; Sexual intercourse; Generative organs; Conception; Fertility; Fertilization; Coitus; Physiology
Notes: Cover title.