Economic and social developement plans /
United Nations
- New York : United Nations. 1966.
- 59 p .; 28 cm.
- statistical papers 46 .
65006786
Bibliography.
JX1977 / .A2 subser.
015 / UNI
65006786
Bibliography.
JX1977 / .A2 subser.
015 / UNI