TY  - BOOK
AU  - Lyndon R C
AU  - Schupp P E
TI  - Combinatorial group theory
SN  - 3-540-07642-5
U1  - 512.2 
PY  - 1977///
CY  - Berlin
PB  - Springer-Verlag
KW  - Combinatorial analysis
KW  - Group theory
ER  -