Swingle, Deane B. <br/><br/>
Text  book of systematic botany  
Deane B. Swingle 
 - 3rd ed. 
 - Newyork   McGraw - Hill  1946 
 - xv,343p.:ill.; 24cm.- 
 - McGraw-Hill publications in the botanical sciences .
<br/><br/><label>Dewey Class. No.: </label>581.012  / SWI