TY  - BOOK
AU  - Delgado, A
AU  - Goldschmidt
TI  - Groups and Graphs New Results and Methods
SN  - 3764317361
U1  - 511. 
PY  - 1985///
CY  - Germany
PB  - Birkhauser verlag Basel
KW  - Mathamatics
ER  -