Weaver, J. E. <br/><br/>
Root development of vegetable crops / 

 - New York :  McGraw-Hill Book Company,  1927. 
 - xiii,  351 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant physiology—Roots<br/>Agricultural botany<br/>Crop science
<br/><br/><label>Dewey Class. No.: </label>581.498 WEA