College trigonometry 
Richman, Fred, 1938- 
 -  Scott, Foresman,  1970 
 - 198 p. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometrical functions.
<br/><br/><label>Dewey Class. No.: </label>514 R41c 1970