Technical Drawing book 1. 
Mayock, F.B 
 - Metric edition. 
 - London,  Heinemann.  1971. 
 - 22p. 
<br/><br/><label>ISBN: </label>0-435-75587-0 
<br/><br/><label>LC Class. No.: </label>T 353   / .M39 1971