World population monitoring, 1997 international migration and development.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	United Nations. Department of International Economic and Social Affairs. Population Division
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	New York United Nations 1998.
Pynciau:	Emigration and immigration > Economic aspects. Emigration and immigration > Government policy.