TY  - BOOK
AU  - Gray, Alfred 
AU  - Abbena, Elsa
AU  - Salamon, Simon
TI  - Morden differential geometry: of curves and surfaces with mathematica 
SN  - 978-1-58488-448-4
AV  - QA 641 .G73 2006
PY  - 2006///
CY  - New York
PB  - Tylor & Francis Group
KW  - Curve
KW  - Calculus
KW  - Nonorientlabe
N1  - Includes bibliography and index
ER  -