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Earthcare. Ecological agriculture in Saskatchewan: Paul Hanley (editor), The Earthcare Group,Sask., Canada, 1980, 240 pp. (approx.), US $12.00 (soft cover), ISBN 0-9690483-0-0 |
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| Authors: | T.L.V. Ulbricht |
| Affiliation: | Agricultural Research Council 160 Great Portland Street London W1N 6DT, Gt. Britain |
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