PENN (W S). <br/><br/>
P V C technology. 

 - London.  Maclaren & Sons., Ltd.,  1962 
 - xiv,385 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PVC<br/><br/>
<br/><br/><label>Dewey Class. No.: </label>668.4 PENP