1. Dr. Havelock Ellis on the psychology of sex Author(s): Shufeldt, Robert W. (Robert Wilson), 1850-1934 author Publication: [San Francisco?] : [publisher not identified], [1901?] Subject(s): SexSexual Behavior -- psychologyEllis, Havelock, 1859-1939.
2. Sex conduct in marriage: (the art of maintaining love and happiness in marriage) Author(s): Bernard, Bernard, 1890- author Publication: Chicago, U.S.A. : Health and Life Publications, [1922] Subject(s): Sexual Behavior -- psychologyMarriage -- psychologyInterpersonal RelationsSpouses -- psychology