ISSN: 1054-2116 1
Idioma: Inglés,
Publicado: Ames, Agricultural Research Sevice-USDA, Dept. of Agronomy and Dept. of Genetics, Iowa State University [etc.]

ISSN: 0002-161X 1
Idioma: Inglés,
Publicado: [Washington, D.C. : Science and Education Administration], U.S. Dept. of Agriculture : [Supt. of Docs., U.S. G.P.O., distributor,

ISSN: 0002-1423 1
Idioma: Inglés,
Publicado: Washington, D.C. : U.S. Dept. of Agriculture, Bureau of Agricultural Economics : For sale by the Supt. of Docs., U.S. G.P.O., 1949-1987.