International economic conference, Geneva, May 1927 : documentation : population and natural resources /
League of Nations. Economic and Financial Section.
- Geneva : League of Nations, 1927.
- 35 p. ; 27 cm..
- League of Nations ll. Economic and financial 1927, ll. 38. .
Includes bibliographical references.
Natural resources.
333.7 / LEI
Includes bibliographical references.
Natural resources.
333.7 / LEI