Lyndon, Roger C. Combinatorial group theory / Roger C. Lyndon and Paul E. Schupp - Berlin ; New York : Springer-Verlag, c2001. - xiv, 339 p. : ill. ; 24 cm. - Classics in mathematics . Shanti Books8326/14Euro 54.99 ISBN: 9783540411581 (pbk.) Subjects--Topical Terms: Combinatorial group theory. Dewey Class. No.: 512.2 LYN