(1980). The United Nations programme for comparative analysis of world fertility survey data: A project of the United Nations carried out in collaboration with the United Nations Fund for population activities. United Nations Fund for Population Activities.
Παραπομπή σε μορφή Chicago (17η εκδ.)The United Nations Programme for Comparative Analysis of World Fertility Survey Data: A Project of the United Nations Carried Out in Collaboration with the United Nations Fund for Population Activities. [χ.τ.]: United Nations Fund for Population Activities, 1980.
Παραπομπή σε μορφή MLA (8th εκδ.)The United Nations Programme for Comparative Analysis of World Fertility Survey Data: A Project of the United Nations Carried Out in Collaboration with the United Nations Fund for Population Activities. United Nations Fund for Population Activities, 1980.
