Organic fertilizers ; which ones and how to use them 

 - Emmaus, Pa. :  Rodale,  1976 
 - 129 p. 
<br/><br/><label>LCCN: </label>35327 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abonos.
<br/><br/><label>Dewey Class. No.: </label>631.86  / O7