OELHAF, Robert C.  - <br/><br/>
Organic agriculture :  economic & ecological comparisons with conventional methods. 

 - 
 - Montclair,   Allanheld   1978 
 - xii, 271p 
<br/><br/>
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics Agriculture 
<br/><br/><label>Dewey Class. No.: </label>338.1/OEO