Williamson, George <br/><br/>
Technical drawing in 20 steps 
Williamson, George 
 - London  Cassell and Co ltd 
 - 92p.:  ill,;  15 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE
<br/><br/><label>Dewey Class. No.: </label>604.2  / WIL