 Mines. (Manuscript published by permission of the Director, Bureau of Mines, US Department of the Interior).  Land Policy Review - Página 2por United States. Bureau of Agricultural Economics - 1938Visualização integral - Acerca deste livro
 | 1943 - 884 páginas
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 | United States. Congress. Senate. Committee on Military Affairs - 1937 - 196 páginas
...predictions were made as to the evil consequences of too rapid exhaustion of our mineral deposits. ' Published by permission of the Director, Bureau of Mines, US Department of the Interior. (Not subject to copyright.) Presented at the annual convention of the National Association... | |
 | United States. Bureau of Agricultural Economics - 1943 - 364 páginas
...country. Occasionally in these articles somewhat different boundaries are used. CONTRIBUTORS: CARL C. TAYLOR is Head of the division of farm population...EATON, Director of Department of Arts and Social Work, Russeli Sage Foundation, wrote the authoritative Handicrafts of the Southern Highlanders. PAUL F. DOUGLASS... | |
 | 1948 - 584 páginas
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 | 1939 - 1158 páginas
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 | 1941 - 536 páginas
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