Friedman.L.C Erdmann.D.E. <br/><br/>
Techniques of Water-Resources Investigations of the United States Geological Survey  QUALITY ASSURANCE PRACTICES FOR THE CHEMICAL AND BIOLOGICAL ANALYSES OF WATER AND FLUVIAL SEDIMENTS 

 - Unites States Government Printing Office  Washington  1982 
 - 181p.  ILL.,Cht.,Fig and Table 
 - Book  5, A6 .
<br/><br/><label>Nat. Bib. No.: </label>5246 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>626/628  / QUA