1.
[Place of publication not identified] : [publisher not identified], 1957.
English | C 384 UN.A | Available |
2.
Washington,d.c. : The World Bank, 1991.
Third printing.
English | A 4(111:133) WOR VOL 2 | Available |
3.
[Place of publication not identified] : [publisher not identified], 1948.
English | C 384 UN.PR | Available |
4.
Washington, D.C., U.S.A. : World Bank, c1991.
Third edition.
English | A 4(111:113) WOR VOL 1 | Available |