TY  - BOOK
AU  - Crowell Richard H
AU  -  Fox Ralph H
TI  - Introduction to knot theory
T2  - Graduate text in mathematics; 57
U1  - B636M47, K3;1 
PY  - 1963///
CY  - New York    
PB  -  Springer-Verlag        
KW  -  Curve in space
KW  -  Three dimension geometry
KW  - Mathematics
ER  -