Harrop, Percy Frederick. <br/><br/>
Exercises in engineering drawing /    
by P. F. Harrop 
 - London :  Macmillan,  1947 [reprinted 1963] 
 - 62 p. :  ill. ;   26 cm. 
<br/><br/>Vol. 1, a set of graded examples for technical schools and institutes -- v. 2 -- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing.
<br/><br/><label>Dewey Class. No.: </label>604.2  / HAE 1961