Porteous, I.R <br/><br/>
Geometric differentiation for the intelligence of curves & surfaces 
I.R. Porteous 
 - Cambridge  Cambridge University Press  1994 
 - xiii  301 
<br/><br/><label>ISBN: </label>052139063x 
<br/><br/><label>Dewey Class. No.: </label>8.05  / PORT