Wilson, J. Douglas. <br/><br/>
Simplified roof framing / 
J. Douglas Wilson and S. O. Werner. 
 - 2nd ed. 
 - New York :  McGraw-Hill,  c 1948. 
 - ix, 160 p. :  ill. ;  21 cm. 
<br/><br/> Index includes 
<br/><br/>331  331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roofs.
<br/><br/><label>Dewey Class. No.: </label>695 / W694s