Difference between revisions of "Recommended references"
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==Books== | ==Books== | ||
| − | + | ===[[Permanent agriculture]]=== | |
| + | [https://archive.org/details/soilfertilityper00hopkiala|''Soil Fertility and Permanent Agriculture''] Cyril G. Hopkins, 1910 | ||
| + | [http://www.gutenberg.org/ebooks/5350|''Farmers of Forty Centuries: Or Permanent Agriculture in China, Korea and Japan''] | ||
| + | J. Russell Smith's excellent 1929 book [http://soilandhealth.org/01aglibrary/010175.tree%20crops.pdf|''Tree Crops: A Permanent Agriculture''] | ||
==Videos== | ==Videos== | ||
Revision as of 11:11, 14 January 2015
Books
Permanent agriculture
Soil Fertility and Permanent Agriculture Cyril G. Hopkins, 1910 Farmers of Forty Centuries: Or Permanent Agriculture in China, Korea and Japan J. Russell Smith's excellent 1929 book Tree Crops: A Permanent Agriculture
