Quality assurance in environmental monitoring :  instrumental methods / 
Edited by G. Subramanian 
 - Weinheim, Federal Republic of Germany :  VCH,  1995. 
 - 334 p. 
<br/><br/><label>ISBN: </label>3527286829 (hc) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--Measurement--Quality control.<br/>Environmental sampling--Quality control.