Levy,Lawrence S <br/><br/>
Trigonometry with calcilators. 
S Levy 
 - New York   Macmillan  1983 
<br/><br/><label>ISBN: </label>0023704500 
<br/><br/><label>Subjects--Topical Terms: </label><br/>2. Trigonometry
<br/><br/><label>LC Class. No.: </label>QA 538 .L48