Principles of environmental sampling / 
edited by Lawrence H. Keith. 
 - 2nd ed. 
 - Washington, DC :  American Chemical Society,  c1996. 
 - xxix, 848 p. : ill. 
<br/><br/><label>ISBN: </label>0841231524 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sampling.<br/>Environmental monitoring.<br/>Pollution--Measurement.<br/>Environmental chemistry.