Roberts, Harry W. <br/><br/>
R's method of using ordinary set squares :   in drawing and design /  
by Harry W.Roberts 
 - London :   The Architectural Press,   1927.  
 - 114 p.,  189 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DIBUJO TECNICO
<br/><br/><label>Universal Decimal Class. No.: </label>744