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Soil Management: A World View of Conservation and Production
by Cook, Ray L., Ellis, Boyd G.
ISBN: 9780471889274
List Price: $54.95
4.
Soil Management A World View of Conservation and Production
by Cook, Ray L., Ellis, Boyd G.
ISBN: 9780894646829
List Price: $63.50
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Cropping Strategies for Efficient Use of Water and Nitrogen
by Ellis, Boyd G., Hargrove, W...
ISBN: 9780891183174