Ambasht, R.S. . <br/><br/>
Environmment and Pollution: An Ecological Approach /  Textual Documents 
R.S. Ambasht. 
 - 1st ed. / 
 - Varanasi :  Students` Friends & Co. ,  1990. 
 - x, 231p. :  ill. ;  22cm . 
<br/><br/>Bib, Index 
<br/><br/><label>ISBN: </label> HB 
<br/><br/><label>Subjects--Index Terms: </label>Biology-Environmment, Pollution, Ecology 
<br/><br/><label>Dewey Class. No.: </label>574.5  / An 16 En