Upland rice improvement under shifting cultivation systems in the Amazon Basin o
Sanchez, P.A., Nurena, S.M.A.
Upland rice improvement under shifting cultivation systems in the Amazon Basin o - North Carolina 1972 - 20 p. - No. 210; Carolina, North Agric .
Upland rice improvement under shifting cultivation systems in the Amazon Basin o - North Carolina 1972 - 20 p. - No. 210; Carolina, North Agric .