Collecting data for the estimation of fertility and mortality.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	National Research Council. Panel on Collection
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Washington National Academy Press 1981.
Cyfres:	Report / Committee on Population and Demography 6
Pynciau:	Population research. Fertility, Human. Mortality.