Trivedi, P.R.. <br/><br/>
Encyclopaedia of Environment, Pollution, Planning And Conservation : Environmental Education Vol-5 /  
by P.R. Trivedi. 
 - 1st ed /  
 - New Delhi :   APH Publishing Corporation ,   1985 
 - VII,201p :  
<br/><br/><label>ISBN: </label>81-7648-005-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopaedia
<br/><br/><label>Dewey Class. No.: </label>G:55K  / N8.5