Organic farming
Lampkin, Nicolás.
Organic farming - Ipswich, England : Farming Press, 1990 - 701 p. : ilus.
40014
Agricultura orgánica.
631.584 / L3
Organic farming - Ipswich, England : Farming Press, 1990 - 701 p. : ilus.
40014
Agricultura orgánica.
631.584 / L3
