Branson, John W. and Hassler, J.O. <br/><br/>
Trigonometry 
Without Tables 
 - New York  Henry Holt and Company  1937 
 - 198 
<br/><br/><label>Subjects--Personal Names: </label> General 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General