Spellman, Frank R. <br/><br/>
The handbook for waterworks operator certification / 
 Waterworks operator certification 
Frank R. Spellman 
 - Lancaster, PA :  Technomic Pub. Co.,  c2001 
 - 3 v. :  ill. ;  28 cm. 
<br/><br/> Includes index  Vol. 3 co-authored by Joanne E. Drinan 
<br/><br/>v. 1. Fundamental level -- v. 2. Intermediate level -- v. 3. Advanced level (co-authored by Joanne E. Drinan) 
<br/><br/><label>ISBN: </label>1566768667 (v. 1) 1566769728 (v. 2) 1587160617 (v. 3) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Waterworks--Handbooks, manuals, etc.<br/>Water--Purification--Handbooks, manuals, etc.<br/>Water--Distribution--Handbooks, manuals, etc.