Bio-dynamic farming and gardening
Subtitle: soil fertility renewal and preservation
By: [by] Ehrenfried Pfeiffer, with 18 illustrations; translated from German by Fred Heckel.
Contributors: Heckel, Fredrick.
Publisher: Anthroposophic press; Rudoff Steiner publishing co.
Published: 1938
Place of publication: New York; London
Language: eng; ger
Number of pages: 220
Subjects: Soils; Fertilizers
Other titles: Soil fertility renewal and preservation.
Notes: Bibliography: p. 217-220.