rhythm way to family happiness
Subtitle: a practical manual for application of the medical findings of Dr.K.Ogino and Dr. H. Knaus regarding periods of time when conception is possible (fertile or baby days) and when conception is not possible (sterile days).
Contributors: Laux, John Donald.
Edition: 2nd ed.!.
Publisher: Staples P
Published: 1959
Language: eng
Number of pages: 200
Notes: Second ed. originally published - Hawthorn Books (B57-13676) 1957.