World population trends and policies, 1981 monitoring report.
| 企業作者: | |
|---|---|
| 格式: | 圖書 |
| 語言: | 英语 |
| 出版: |
New York
United Nations
1982.
|
| 叢編: | Population studies / Department of International Economic and Social Affairs
no.79 |
| 主題: |