Tinker, tiller, technical change
Gamser, S. Matthew
Tinker, tiller, technical change Tecnologies from the people Matthew S. Gamser; Helen Appleton; Nicola Carter - S.ed. - London Intermediate tecnology publications 1990 - 1990
1853390615 0-942850-31-9
Agricultura geral
Inovacoes tecnologicas
Extensao rural
631.152
Tinker, tiller, technical change Tecnologies from the people Matthew S. Gamser; Helen Appleton; Nicola Carter - S.ed. - London Intermediate tecnology publications 1990 - 1990
1853390615 0-942850-31-9
Agricultura geral
Inovacoes tecnologicas
Extensao rural
631.152