United States.  Environmental Protection Agency.,  Office of Water Program Operations <br/><br/>
Water quality and pollutant source monitoring:  field and laboratry procedures:  training manual/ 
United States Environmental Protection Agency, National Training and Operational Technology Center, 
 - Cincinnati :  United States Environmental Protection Agency, National Training and Operational Technology Center,  1981. 
 - l v. :  ill. ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Analysis--Handbooks, manuals, etc.<br/>Water quality--Measurement.<br/>Water--Analysis--Laboratory manuals.