Combinatorial group theory :
Combinatorial group theory :
Magnus, Wilhelm,
- Mineola, N.Y. : Dover Publications, 2004
- xii, 444 p. ; 22 cm.
Previously published: 2nd rev. ed. New York : Dover Publications, 1976.
0486438309 (pbk.)
Previously published: 2nd rev. ed. New York : Dover Publications, 1976.
0486438309 (pbk.)