1
Publicado 1984
“...National Research Council (Estados Unidos). Board of Agriculture...”
Libro
2
Publicado 1988
“...National Research Council (Estados Unidos) Board of Agriculture Committee on Agricultural Education...”
Libro
3
Publicado 1976
“...National Research Council (Estados Unidos). Board on Agriculture and Renewable Resources...”
Libro
4
Publicado 1990
“...National Research Council (Estados Unidos) Board of Agriculture...”
Libro
5
Publicado 1977
“...National Research Council (Estados Unidos) Board on Agriculture and Renewable Resources...”
Libro
6
por Ullrey, Duane Earl 1928-
Publicado 2003
“...National Research Council (Estados Unidos) Board on Agriculture and Renewable Resources...”Publicado 2003
Libro