The nature and content of fertility surveys conducted throughout the world since 1960 /
Duncan, William G.
The nature and content of fertility surveys conducted throughout the world since 1960 / prepared by William G. Duncan. - The Hague : N.V. Drukkerij Trio, 1973. - 32 p. : ill., tabs. ; 24 cm. - Occassional paper / no. 1 .
Title on cover age: "Fertility and related surveys" "October 1973"
Fertility, Human.
Birth control.
304.632 DUN
The nature and content of fertility surveys conducted throughout the world since 1960 / prepared by William G. Duncan. - The Hague : N.V. Drukkerij Trio, 1973. - 32 p. : ill., tabs. ; 24 cm. - Occassional paper / no. 1 .
Title on cover age: "Fertility and related surveys" "October 1973"
Fertility, Human.
Birth control.
304.632 DUN