Field studies on fertility problems of two Brazilian campos cerrados, 1958-59
de Freitas, L.M.M.
Field studies on fertility problems of two Brazilian campos cerrados, 1958-59 - New York 1960 - 32 p. - IBEC Research Institute, New York .
Field studies on fertility problems of two Brazilian campos cerrados, 1958-59 - New York 1960 - 32 p. - IBEC Research Institute, New York .