Especial course in crop and livestock estimating and reporting as lectured by Roy L. Gillett. Interpreted by Miguel A. Valencia.

Dades bibliogràfiques
Autor corporatiu:	Centro Latin-Americano de Capitacion y Demostracion Estadistica Agricola
Format:	Llibre
Idioma:	English
Publicat:	Quito 1952.
Matèries:	Agriculture > Stat. Agricultural estimating and reporting. Stock and stock-breeding > Stat.