Wallace, Thompson J. <br/><br/>
Roofing Research and Standards Development rd. Volume. 

 - 1st./ed 
 - vii, 188p.  illus.  23cm. 
<br/><br/><label>ISBN: </label>080311883x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Structural Elements-Construction--1994--Philadelphia--paperbound