• Beaglehole, Ernest, and Pearl Beaglehole 1938 Ethnology of Pukapuka. Bernice P. Bishop Museum Bulletin 150.
  • Besant, Annie n.d. The law of population (fiftieth thousand). London: Freethought.
  • Campbell, Donald T. 1964 Distinguishing differences of perception from failures of communication in cross-cultural studies. In Cross-cultural understanding. F. S. C.Northrop and Helen H.Linvingston, eds. New York: Harper and Row.
  • Hartman, Carl G. 1962 Science and the safe period. London: Baillière, Tindall and Cox.
  • Himes, Norman E. 1936 Medical history of contraception. Baltimore: Williams and Wilkins.
  • Hollis, A. C. 1909 The Nandi. Oxford: Clarendon Press.
  • Middleton, John 1965 The Lugbara of Uganda. New York: Holt, Rinehart and Winston.
  • Parsons, Elsie Clews 192930 Isleta, New Mexico. Washington, forty-seventh Annual Report of the Bureau of American Ethnology.
  • Polgar, Steven 1962 Health and human behavior. Current Anthropology 3:159205.
  • Stockham, Alice B. 1887 Tokology. Chicago: Sanitary Publishing Co.