TY  - BOOK
AU  - Magnus, Wilhelm
AU  - Karrass, Abraham
AU  - Solitar, Donald
TI  - Combinatorial group theory: presentations of groups in terms of generators and relations
SN  - 0486632814
U1  - 512.22 
PY  - 1976///
CY  - NY
PB  - Dover publications
ER  -