Rider , Paul R.. <br/><br/>
Plane Trigonometry /  Textual Documents 
Paul R.Rider & Alfred Davis. 
 - 1st ed. / 
 - London :  Blackie & Sons Ltd ,  C1929. 
 - xi,280p. ;  20cm. 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Trigonometry Plane Trigonometry G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>514.5  / R 435 P