Some techniques for measuring the impact of contraception.
- Bangkok : United Nations (UN) , 1974
- v, 136p. : ill. ; 29 cm.
- Asian population studies series, no. 18 .
Includes bibliographical references.
Birth control--Mathematical models--Pakistan
UN ESCAP APSS-18
Includes bibliographical references.
Birth control--Mathematical models--Pakistan
UN ESCAP APSS-18