Books

1. Humic Substances: Structures, Properties and Uses (Special Publication (Royal Society of Chemistry (Great Britain)))
   

   ---

2. Tools for Agriculture: A Buyer's Guide to Appropriate Equipment
   

   ---

3. Arable Plants: A Field Guide
   

   ---

4. Twice Humanity: Implications for Local and Global Resource Use
   

   ---

5. Fashioning Farmers: Ideology, Agricultural Knowledge and the Manitoba Farm Movement, 1890-1925 (Canadian Plains Studies, No 30)
   

   ---

Books