The fertility awareness workbook the complete guide to natural family planning for the woman who wants to conceive, and the woman who doesn't
Kass-Annese, Barbara.
Danzer, Hal C.(Hal Conrad)1945-
Wellingborough Thorsons
1986, c1984
Originally published: New York : Putnam, 1984
Bibliography: p114-116. - Includes index
Natural family planning.