Biology of fertility control by periodic abstinence :
Biology of fertility control by periodic abstinence : report of a WHO Scientific Group [meeting held in Geneva from 31 May to 6 June 1966]
- Geneva : World Health Organization, 1967.
- 20 p.
- World Health Organization technical report series ; no. 360 .
Russian version of nos. 348-365 bound together (barcode no. 00072086).
Copy 2 of English, French and Spanish eds. bound together.
eng fre rus spa.
9241203609
Natural family planning methods
WP 630
Russian version of nos. 348-365 bound together (barcode no. 00072086).
Copy 2 of English, French and Spanish eds. bound together.
eng fre rus spa.
9241203609
Natural family planning methods
WP 630