Trivedi, P.R. <br/><br/>
Environmental biology. 

 - 1st/ed. 
 - India :  Akashdeep Pub. House,  c1991. 
 - 392p.  illus. (pbk)  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--c1991--India--paperback<br/>Environmental science--c1991--India--paperback