TECHNIQUE OF CONTRACEPTION, the principles and practice of anti-conceptional methods.
NY: Day-Nichols, 1928. 3rd printing. 8vo, Pp. 271. Bibliography, Dust soiled cloth, VG. (Item ID: 8940)
Cooper was medical director of the clinical research dept. of the American Birth Control League, etc. Dedicated to Margaret Sanger, this was written expressly for doctors.