Guttman, Daniel L. <br/><br/>
Computer cost models for potable water treatment plants / 
by Daniel L. Guttman [and] Robert M. Clark 
 - Washington, D.C. :  U.S. Government Printing Office,  1978 
 - xi, 59 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Purification
<br/><br/><label>Dewey Class. No.: </label>628.16220973