Mitchell, John William. <br/><br/>
Methods of studyng plant hormones and growth-regulating substances 

 - Washington :  USDA. Agricultural Research Service,  1968 
 - 140 p.  : ilus. 
 - USDA. Agriculture handbook  ; 336 .
 - USDA Agriculture handbook  ; 336 .
<br/><br/><label>LCCN: </label>60809 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hormonas vegetales.<br/>Plantas--Crecimiento--Aditivos.
<br/><br/><label>Dewey Class. No.: </label>581.194  / M5