APA Citation

Ovulation Method Advisory Service. The ovulation method of natural family planning: Based on a lecture by Dr. J.J. Billing. Cork: O.M.A.S..

MLA Citation

Ovulation Method Advisory Service. The Ovulation Method of Natural Family Planning: Based On a Lecture By Dr. J.J. Billing. Cork: O.M.A.S..

Warning: These citations have been automatically generated and may not always be 100% accurate..