Cita APA (7a ed.)

Wilson, M. A. (1980). The ovulation method of birth regulation: The latest advances for achieving or postponing pregnancy-naturally. Van Nostrand Reinhold.

Cita Chicago Style (17a ed.)

Wilson, Mercedes Arzú. The Ovulation Method of Birth Regulation: The Latest Advances for Achieving or Postponing Pregnancy-naturally. New York [etc.]: Van Nostrand Reinhold, 1980.

Cita MLA (9a ed.)

Wilson, Mercedes Arzú. The Ovulation Method of Birth Regulation: The Latest Advances for Achieving or Postponing Pregnancy-naturally. Van Nostrand Reinhold, 1980.