Weaver, Robert J.  1917- <br/><br/>
Plant growth substances in agriculture 
Robert J. Weaver 
 - San Francisco  W. H. Freeman  [1972] 
 - xviii, 594 p.  ill.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant regulators<br/>Plant hormones<br/>Herbicides
<br/><br/><label>Dewey Class. No.: </label>631.5