Mathematics for the engine lathe. 
Issued by the Federal Board for Vocational Education in cooperation with the Surgeon General's Office and the Bureau of War Risk Insurance. January, 1919. 
 - (Trial edition) 
 - Washington,  Govt. Print. Off.,  1919. 
 - 28 p.  23 cm. 
 - Rehabilitation monograph. Joint series,  no. 21 .
<br/><br/> At head of title. Unit course--Machine shop practice VII.  Prepared by Mr. R.W. Burnham.--p. 7. 
<br/><br/><label>LCCN: </label>e  19000138  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine-shop practice.<br/>Lathes.
<br/><br/><label>LC Class. No.: </label>UB363  / .A3 no. 21