Woolgar,  W. J. <br/><br/>
Plastics In plumbing / 
W. J. Woolgar. 
 - New York :  Hutchinson Educational,  c 1963. 
 - 96 p. :  ill. ;  22 cm. 
<br/><br/> Includes Index 
<br/><br/>339  339 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Utilities-Plastics
<br/><br/><label>Dewey Class. No.: </label>696.1 / W884p