Essential environmental science :  methods & techniques / 
edited by Simon Watts and Lyndsay Halliwell. 
 - London ;  New York :  Routledge,  1996. 
 - xxxii, 512 p. :  ill., maps ; 
<br/><br/><label>ISBN: </label>0415132460 0415132479 9780415132466 9780415132473 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Experiments--Methodology.<br/>Environmental sciences--Experiments--Technique.
<br/><br/><label>LC Class. No.: </label>GE70.E87