By Snedecor, George W..
Buenos Aires : Acme Agency, 1948

By Hayes, Herbert Kendall.
Buenos Aires : Acme Agency, 1947

By Sharp, Lester W..
Buenos Aires : Acme Agency, 1947

By Braun-Blanquet, J..
Buenos Aires : Acme Agency, 1950

By Cain, Stanley A..
Buenos Aires : Acme Agency, 1951

By Vavilov, Nicolai I..
Buenos Aires : Acme Agency, 1951

By Marchionatto, Juan B..
Buenos Aires : Acme Agency, 1951

By Hunziker, Armando Teodoro.
Buenos Aires : Acme Agency, 1952

By Burkart, Arturo.
Buenos Aires : Acme Agency, 1943

By Burkart, Arturo.
Buenos Aires : Acme Agency, 1952

By Lyon, T. Lyttleton.
Buenos Aires : Acme Agency, 1950

By Alcott, Louisa M..
Buenos Aires : Acme Agency, 1952

By London, Jack.
Buenos Aires : Acme Agency, 1951

By Hayes, Herbert Kendall.
Buenos Aires : Acme Agency, 1951

By Smith, Kenneth M..
Buenos Aires : Acme Agency, 1950

By Cain, Stanley A..
Buenos Aires : Acme Agency, 1951

By Elton, Charles.
Buenos Aires : Acme Agency, 1946 .
128 p. ; 17 cm.

By Sears, Minnie Earl.
Buenos Aires : Acme Agency, 1949 .
406 p. ; 25 cm.