Betz, William,  1879-  <br/><br/>
Basic mathematics :  a self-teaching course / 
William Betz. 
 - Boston :  Published for the United States Armed Forces Institute by Ginn,  c1944. 
 - V :  ill. ;  19 cm. 
<br/><br/>Includes index. 
<br/><br/>Vol.1; Vol. 2 --- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>510  / BEB 1944