Encyclopaedia of Environmental Sciences :  Environmental Water and Soil Analysis Vol. 15 

 - New Delhi :  Akashdeep Publishing House ,   1992. 
 - vi, 240p.;  21cm 
<br/><br/><label>ISBN: </label>8171582613 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human Ecology
<br/><br/><label>Dewey Class. No.: </label>304.203  / ENC