Recommended references
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Revision as of 11:18, 14 January 2015 by Ahoussney (Talk | contribs) (Ahoussney moved page Recommended References to Recommended references over redirect: capitalization)
Books
Permanent agriculture
- Soil Fertility and Permanent Agriculture Cyril G. Hopkins, 1910
- Farmers of Forty Centuries: Or Permanent Agriculture in China, Korea and Japan Franklin Hiram King 1911
- Tree Crops: A Permanent Agriculture J. Russell Smith, 1929