Hyatt, H. R <br/><br/>
Arithmetic With Pushbutton Accuracy. 

 - [S.l.] :   Wiley,   1977. 
 - 304p  28cm 
<br/><br/><label>ISBN: </label>0471223085 
<br/><br/><label>Dewey Class. No.: </label>513 HYA