Du Val, Patrick,  1903- <br/><br/>
Homographies, quaternions, and rotations/ 
Patrick Du Val. 
 - Oxford:  Clarendon Press,  1964. 
 - xiv, 116 p.:  illus. (part col.),  24 cm. 
 - Oxford mathematical monographs. .
<br/><br/>Bibliography: p. [xi]-xii. 
<br/><br/><label>LCCN: </label>64056979 //r81 
<br/><br/><label>Nat. Bib. No.: </label>GB65-168 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Collineation.<br/>Quaternions.<br/>Polytopes.
<br/><br/><label>Dewey Class. No.: </label>516.5 D812h  / D812h