TY  - BOOK
AU  - Wilczynski,E.J.
TI  - Projective differential geometry of curves and ruled surfaces
U1  - 516.74 
PY  - 1961///]
CY  - New York
PB  - Chelsa Pub.
KW  - Geometry, Differential
KW  - Curves
N1  - Includes index
ER  -