Ward, Robert C. <br/><br/>
Evaluating the sampling frequencies of water quality monitoring networks / 
Robert C. Ward and Knud Strange Nielsen 
 - Nevada :  United states government pinting office,  1978 
 - vi, 33 p. :  ill. ;  28 cm. 
<br/><br/> EPA-600/7-78-169  Interagency energy-environment research and development program report 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water Safety<br/>Water monitoring
<br/><br/><label>Dewey Class. No.: </label>353.9870973