Weinfeld, Mark N. <br/><br/>
Trigonometry / 
Mark N. Weinfeld ; contributing editors, Carl E. Langenhop, Tony Julianelle, Charles M. Jones. 
 - Lincolnwood, IL :  NTC Learning Works,  c1996. 
 - vii, 98 p. : ill. 
 - Test yourself .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry