The Billings method
Subtitle: controlling fertility without drugs or devices
By: Dr. Evelyn Billings & Ann Westmore.
Contributors: Westmore, Ann.
Publisher: Anne O'Donovan
Published: 1980
Place of publication: Richmond, Victoria, Australia
Language: eng
Number of pages: 254
Subjects: Contraception -- methods.; Cervix Mucus.; Menstruation.; Ovulation Detection -- methods.
Notes: Bibliography: p. 230-237.