Zimmer, Gary F. <br/><br/>
Advancing biological fairming:  Practicing mineralized, balanced agriculture to improve soils & crops/ by 
Gary F. Zimmer & Leilani Zimmer- Durand 
 - U. S. A.  Acres  2011 
 - xiv, 241p. 
<br/><br/><label>ISBN: </label>1601730190 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Biological farming<br/>Soil science<br/>Soil plant relationship<br/>Fertilizers and plant nutrition
<br/><br/><label>LC Class. No.: </label>SB605.5  / .Z56 2011