Chrestenson, H. E. <br/><br/>
Mappings of the plane :  with applications to trigonometry and complex numbers / 
H. E. Chrestenson. 
 - San Francisco :  W. H. Freeman,  c1966 
 - vi, 171 p. :  ill. 
 - A Series of books in mathematics .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometrical functions.<br/>Geometry, Analytic--Plane.<br/>Numbers, Complex.