International Population Conference = Congres international de la population Liege, 1973.

Manylion Llyfryddiaeth
Awduron Corfforaethol: International Population Conference Liege, International Union for the Scientific Study of Population
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Liege, Belgium International Union for the Scientific Study of Population c1973.
Pynciau: