Verma, V <br/><br/>
Textbook of plant physiology 

 - 4 
 -  Emkay Publications, New Delhi  1975 
 - 558 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant physiology; Botany
<br/><br/><label>Dewey Class. No.: </label>581.1  VER-T4