Singh, B. B. <br/><br/>
NTA UGC-NET/JRF Environmental Science Paper - II / 
Singh, B. B. 
 - viii, 640 p. ; 23 cm. 
<br/><br/><label>ISBN: </label>9789387604674 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science<br/>Competitive exam.
<br/><br/><label>Dewey Class. No.: </label>363.7076