Singh, S.K.  . <br/><br/>
Gymnosperms and palaeobotany /  
by S.K. Singh. 
 - New Delhi :   Campus Books International ,   2008 
 - 208p :  
<br/><br/><label>ISBN: </label>81-8030-145-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Palaeobotany- Gymnosperms
<br/><br/><label>Dewey Class. No.: </label>I6  / P8