TY  - GEN
AU  - Lyndon, Roger C.
AU  - Schupp, Paul E.
TI  - Combinatiorial group theory
SN  - 3540411585
U1  - 512.2 
PY  - 1977///
CY  - Berlin
PB  - Springer-Verlag
KW  - Groups and group theory
ER  -