Proceedings

Xehetasun bibliografikoak
Egile nagusia:	Research Conference on Natural Family Planning, Warrenton, Virginia 1972.
Beste egile batzuk:	Urichie, William A., Natural family planning
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	Washington, D. C. Human Life Foundations c1973
Gaiak:	Birth control > Congresses. Rhythm method (Birth control) > Congresses.