Tác giả
United States. Congress. House. Temporary National Economic Committee
11
Kerala (India). Labour Dept
3
United States. Federal Power Commission
3
United States. Federal Trade Commission
3
Alabama. State Board of Agriculture
2
Cook, Roy C. (Roy Clyde), 1909-
2
Alabama. Live Stock Sanitary Board
1
Alabama. State Board of Agriculture and Industries
1
Alabama. State Board of Agriculture and Industries. Live Stock Sanitary Division
1
Argentina
1
Argentina. Dirección General de Lechería
1
Argentina. Ministerio de Agricultura y Ganadería
1
Arneson, Gordon
1
Bangladesh. Śrama Paridaptara
1
Bertrand, Daniel, 1901-
1
Blair, John M. (John Malcolm), 1914-
1
Blanchard, E. L. (Edna Lillian), 1912-
1
Buenos Aires (Argentina : Province)
1
Buenos Aires (Argentina : Province). Ministerio de Economía
1
Bugeda Lanzas, Jesús
1
Callmann, Rudolf, 1892-1976
1
Canada. Dept. of Labour
1
Cassinelli Muñoz, Horacio
1
China
1
China. She hui bu. Lao dong ju
1
China. Yan wu zong ju
1
Crowder, Walter F. (Walter Frederick)
1
Domeratzky, Louis
1
Evans, W. Duane (Wilmoth Duane), 1909-1974
1
Farish, W. S. (William Stamps)
1
Gay-Calbó, Enrique, 1889-
1
Great Britain. Treasury
1
Greece
1
Gómez Padilla, Julio
1
Gómez Robles, Julio
1
Hamilton, Walton Hale, 1881-1958
1
Hoffman, A. C. (Austin Clair), 1905-
1
James, Clifford L. (Clifford Lester), 1903-
1
Organization of American States. General Secretariat
1
Pan American Union
1
Pan American Union. General Legal Division
1
Pew, J. Howard (John Howard), 1882-1971
1
Reeside, Arthur, 1903-
1
Roman, Agnes
1
Sapena Brugada, Raúl, 1937-
1
Sapena Pastor, Raúl
1
South Africa
1
South Africa. Dept. of National Health and Population Development
1
Thorp, Willard Long, 1899-1992
1
Till, Irene, 1906-
1
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