Sexual Signatures on Being a Man or a Woman

Softcover, Little Brown & Co 1975. 8" x 5" x .75". Written by a medical psychologist from Johns Hopkins University, Director of the Psychohormonal Research Unit and co founder of the JH Gender Identity Clinic. What makes you a man or a woman? Certain physical characteristics or particular mental attitudes? What are the actual differences cultural sterotypes aside between male and female?