Smail Lloyd L <br/><br/>
Trigonometry plane and spherical 

 -  1952 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>24109 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B5, J2