Selected analytical methods approved and cited by the United States Environmental Protection Agency   
prepared and published by American Public Health Association, American Water Works Association, Water Pollution Control Federation. 
 - [New York]    American Public Health Assn.   c 1981 
 - [2], 106 p.    ill.    23 cm. 
<br/><br/> "Supplement to the Fifteenth Edition of Standard Methods for the Examination of Water and Wastewater." 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Analysis.<br/>Water--Analysis.
<br/><br/><label>Dewey Class. No.: </label>363.7284 SEL 1981