Wilson, J. Douglas  1888- <br/><br/>
Simplified roof framing / 
J. Douglas Wilson and S. O. Werner. 
 - 1st ed. 
 - New York [etc.] :  McGraw-Hill book company, inc.,  c1927. 
 - vii, 122 p. :  ill. ;  21 cm. 
<br/><br/> Includes Index. 
<br/><br/>
<br/><br/><br/>English 
<br/><br/><label>LCCN: </label>27007139  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Roofs.
<br/><br/><label>LC Class. No.: </label>TH2393  / .W73 
<br/><br/><label>Dewey Class. No.: </label>690.15/WIS