Encyclopaedia of Environmental Sciences  : Environmental  Management of Fresh Water Ecology Vol 14 

 - New Delhi :   Akashdeep Publishing House ,   1992. 
 - v, 336p.;  21cm 
<br/><br/><label>ISBN: </label>8171582575 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human Ecology
<br/><br/><label>Dewey Class. No.: </label>304.203  / ENC