Below replacement fertility

Manylion Llyfryddiaeth
Awdur Corfforaethol:	United Nations. Department of Economic and Social Affairs. Population Division
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	New York United Nations 2000.
Cyfres:	Population Bulletin of the United Nations nos. 40/41 1999.
Pynciau:	Fertility, Human > Congresses.