Sexual relations of mankind
xiv, 335 pages ; 21 cm
9781856520638, 1856520633
40557812
"With ... the Physiology of love (Fisiologia dell' amore) and the Hygiene of love (Igiene dell' amore), completes the [author's] Love trilogy (Triologia dell' amore)"--Preface
Originally published: 11th ed. New York : Eugenics Pub., 194-?