Bio-dynamic agrictulture : an introduction /
Koepf, Herbert. H.
Bio-dynamic agrictulture : an introduction / Herbert H.Koepf - New York : The Anthroposophic Press , 1976 - xii,429 p. : ill.; 22cm.
Includes bibliographical references P.405-16
Organic farming
630.58
Bio-dynamic agrictulture : an introduction / Herbert H.Koepf - New York : The Anthroposophic Press , 1976 - xii,429 p. : ill.; 22cm.
Includes bibliographical references P.405-16
Organic farming
630.58