Rodale, J. I. <br/><br/>
Pay dirt :  

 - New York :  The Devin-Adair,  1946. 
 - ix, 242 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus and plant nutrition<br/>Soil conditioning<br/>Sustainable agriculture
<br/><br/><label>Dewey Class. No.: </label>631.875 ROD