Wilson, J. Douglas & Werner, S.O. <br/><br/>
Simplified Roof Framing 
By J. Douglas Wilson & S.O. Werner 
 - St. Louis  McGraw-Hill, Inc.  1948 
 - ix, 160 pages, 21 cm. 
<br/><br/> Includes index 
<br/><br/><label>Dewey Class. No.: </label>694.2 W69 C6