National plumbing code handbook  : standards and  design information 
Edited by Vincent T. Manas 
 - New York:  McGraw-Hill book company,  1957. 
 - various pages 
<br/><br/> HB 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>07039850X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plumbing-Laws and regulations
<br/><br/><label>Dewey Class. No.: </label>696.1  / NAT