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Basic technics in ecological farming : papers presented at the 2nd international conference held by the IFOAM, Montreal, October 1-5, 1978 ; The Maintenance of soil fertility : exposés présentés à la 3 ème conférence internationale organisée par IFOAM, Bruxelles, du 3 au 5 Septembre 1980 /

Other Authors:
Hill, Stuart B., 1943-, Ott, Pierre, 1949-, and International Federation of Organic Agriculture Movements.
Format:
Book
Language:
English
Subjects:
Organic farming Congresses
Agricultural ecology Congresses
Agriculture Congresses
Soil fertility Congresses
View in NAL's Catalog:
CAT83784509