Difference between revisions of "Recommended references"
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*[https://archive.org/details/soilfertilityper00hopkiala|''Soil Fertility and Permanent Agriculture''] Cyril G. Hopkins, 1910 | *[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''] | *[http://www.gutenberg.org/ebooks/5350|''Farmers of Forty Centuries: Or Permanent Agriculture in China, Korea and Japan''] | ||
− | * | + | * [http://soilandhealth.org/01aglibrary/010175.tree%20crops.pdf|''Tree Crops: A Permanent Agriculture''] J. Russell Smith, 1929 |
==Videos== | ==Videos== |
Revision as of 11:12, 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
- Tree Crops: A Permanent Agriculture J. Russell Smith, 1929