Gray, Nicholas, <br/><br/>
Water science and technology :  an introduction / 
Nicholas Gray 
 - Fourth edition 
 - xxiii, 680 pages :  illustrations ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781138630352 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply<br/>Water--Purification<br/>Water--Pollution<br/>Hydrology<br/>Aquatic ecology