Penna, Judith A. <br/><br/>
Graphing calculator manual/ 
Judith A. Penna 
 - 284pages:   illustrations ;  25 cm. 
<br/><br/><label>ISBN: </label>9780201708745 0201708744 9780201709421 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graphic calculators --Handbooks, manuals, etc.<br/>Texas instruments programmable calculators
<br/><br/><label>Dewey Class. No.: </label>512.1