Abott, Paul. <br/><br/>
Trigonometry:  a complete introduction 

 - London:  McGraw-Hill Companies, Inc.   2018 
 - xii, 187 p.; ill.; 20 cm. 
<br/><br/><label>ISBN: </label>9781473678491 
<br/><br/><label>LC Class. No.: </label>QA 533 A131 2018