Math modules :    drafting: a generic skills approach /  
Krar ... [et al.] 
 - SI ed. 
 - Don Mills :    General Publishing Co. ltd.,    1976. 
 - 105, 103 p. :    ill. ;    21 x 26 cm. 
<br/><br/><label>ISBN: </label>0773650164 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Drafting -- Mathematical models
<br/><br/><label>Dewey Class. No.: </label>511.8