Porteous, Ian R. <br/><br/>
Geometric differentiation:  for the intelligence of curves and surfaces/ 
I. R. Porteous. 
 - Cambridge, UK  New York:  Cambridge University Press,  1994. 
 - xiii, 301 p.:  ill. (some col.);  24 cm. 
<br/><br/>Includes bibliographical references (p. 289-294) and index. 
<br/><br/><label>ISBN: </label>052139063X 
<br/><br/><label>LCCN: </label>94196069 
<br/><br/><label>Nat. Bib. No.: </label>GB94-50017 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Differential.<br/>Curves.<br/>Surfaces.
<br/><br/><label>Dewey Class. No.: </label>516.3/63