World population trends and policies, 1981 monitoring report.
| Erakunde egilea: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
New York
United Nations
1982.
|
| Saila: | Population studies / Department of International Economic and Social Affairs
no.79 |
| Gaiak: |