Pretty, J. .
Sustainable agriculutre and food / edited by J. Pretty. - London : Earthscan , 2008 - 4 vols :
978-1-84407-408-2
Agriculture
J3 / P.4
Sustainable agriculutre and food / edited by J. Pretty. - London : Earthscan , 2008 - 4 vols :
978-1-84407-408-2
Agriculture
J3 / P.4