Author
Brazil. Departamento Nacional da Produção Mineral
9 results
Dorr, John Van N. (John Van Nostrand), 1910-
3 results
Barbosa, Aluizio Licinio de Miranda
2 results
Moore, Samuel L.
2 results
Pomerene, Joel B.
2 results
Simmons, George Clarke, 1923-
2 results
United States International Trade Commission
2 results
United States. Agency for International Development
2 results
United States. International Cooperation Administration
2 results
United States. Interdepartmental Committee on Scientific and Cultural Cooperation
1 results