Brenke, William, C, <br/><br/>
Plane and Spherical Trigonometry  Textual Documents 
Brenke, William, C 
 - New York:  The Dryden Press,  1943. 
 - X,242p. 
<br/><br/><label>Subjects--Index Terms: </label>Trigonometric Functions,Functions of Several Angles,Velocities as Vectors,Law of sines