Towards holistic agriculture :
Widdowson, R. W.,
Towards holistic agriculture : A scientific approach / By r.w. widdonwson ; with a foreword by eve balfour - 187 páginas
0080342116
Agricultura biológica
Agricultura
Ecología agrícola
S605.5 / W53
Towards holistic agriculture : A scientific approach / By r.w. widdonwson ; with a foreword by eve balfour - 187 páginas
0080342116
Agricultura biológica
Agricultura
Ecología agrícola
S605.5 / W53