Willcox, Oswin W. <br/><br/>
Principles of agrobiology, or the laws of plant growth in relation to crop production 

 - New York :  Palmer,  1930 
 - 96 p.  : ilus. 
<br/><br/><label>LCCN: </label>54716 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos.<br/>Plantas ornamentales.
<br/><br/><label>Dewey Class. No.: </label>631.5  / W5