Atlas of the ovulation method
Subtitle: the mucus patterns of fertility and infertility
By: Evelyn L. Billings ; John J. Billings ; Rev. Maurice Catarinich.
Contributors: Billings, John J.; Catarinich, Maurice.
Edition: 4th. ed.
Publisher: Franciscan Herald Press
Published: 1980
Place of publication: Chicago
Language: eng
Number of pages: 87
Subjects: Contraception.; Ovulation Detection -- methods.; Family Planning Services.; Cervix Mucus.
Other titles: The Ovulation method
Notes: "A companion to The Ovulation method by John J. Billings, 1980."