Cultivating knowledge : genetic diversity, farmer experimentation and crop research
/ Walter de Boef, Kojo Amanor, Kate Wellard, Anthony Bebbington
. - London : Intermediate Technology publ., 1993
. - XVI-206 p. : couv. ill. en coul. ; 23 cm.
Bibliogr. Index
9781853392047 1853392049
630.
Bibliogr. Index
9781853392047 1853392049
630.