Brazilian agri. and agri. research.
Yeganiantz,L.
Brazilian agri. and agri. research. - Brasilia Dept. of Diffusion of technology. 1984 - 307
Economics
Agri. Economics
338.1
Brazilian agri. and agri. research. - Brasilia Dept. of Diffusion of technology. 1984 - 307
Economics
Agri. Economics
338.1