Smith Herbert G. <br/><br/>
Figuring with graphs and scales 

 -  1938 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>65939 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equation theory
<br/><br/><label>Dewey Class. No.: </label>B23:6, G8