The ovulation method
Subtitle: the achievement or avoidance of pregnancy by a technique which is reliable and universally acceptable
By: by John J. Billings.
Contributors: Brown, J. B.
Edition: 7th ed. --
Publisher: Advocate Press
Published: 1983
Place of publication: Melbourne
Language: eng
Number of pages: 136
Subjects: Natural family planning -- Ovulation method; Ovulation -- Detection
Other titles: Correlations between the mucus symptoms and the hormonal markers of fertility throughout reproductive life
Notes: "With an appendix on Correlations between the mucus symptoms and the hormonal markers of fertility throughout reproductive life, by J.B. Brown ..."

A personal record chart and instructions in pocket.

Bibliography: p. 92-98.

Includes index.