extension agricola princios y tecnicas, Luis Ramiro Beltran Hernán Frías Morán Published: Total Pages: 610 Get eBook
Extensión agrícola : principios y técnicas Hernán Frías Morán Published: 1960 Total Pages: 612 Get eBook
Final Report of the Aid/iica Regional Contract la 187 Between the Inter-american Institute of Agricultural Sciences of the Oas and the Agency for International Development March, 1970 Published: Total Pages: 136 Get eBook
Extensión agrícola dinámica del desarrollo rural Jorge Ramsay Arce Published: 1972 Total Pages: 0 Get eBook
