Herren, Dr. Hans books & textbook
The Carbon Farming Solution: A Global Toolkit of Perennial Crops and Regenerative Agriculture Practices for Climate Change Mitigation and Food Security
Toensmeier, Eric Herren, Dr. Hans
Chelsea Green Publishing /2016-02-22 Hardcover / 512 Pages
isbn-10: 1603585710 / isbn-13: 9781603585712
