1. A complete book of sex knowledge Author(s): Bernard, Bernard, 1890- author Publication: Chicago : Health and Life Publications, [1923] Subject(s): Sex EducationSexual DevelopmentSexual Behavior
2. Sex development or Sex evolution: love, birth and development Author(s): Bernard, Bernard, 1890- author Publication: Chicago : Health and Life Publications, 1924 Subject(s): Sex EducationReproductive Physiological PhenomenaSexual Behavior, AnimalGenitalia -- physiology
3. Sex development, or, Sex evolution, love, birth and development Author(s): Bernard, Bernard, 1890- author Publication: Chicago : Health and Life Publications [1922?] Subject(s): Sexual DevelopmentSex EducationReproduction
