Rhoades, R.
The reference file method: An eclectic approach for improving agro-ecological and crop data of developing countries The social sciences at CIP; report - Lima, Perú 1988 - páginas 118-128
5 ref.
92-9060-117-5
The reference file method: An eclectic approach for improving agro-ecological and crop data of developing countries The social sciences at CIP; report - Lima, Perú 1988 - páginas 118-128
5 ref.
92-9060-117-5