Combinatorial group theory; presentations of groups in terms of generators and relations Wilhelm Magnus, Abraham Karrass [and] Donald Solitar. Magnus, Wilhelm, 1907- Karrass, Abraham, joint author. Solitar, Donald, joint author. Presentations of groups (Mathematics) QA171 .M2 512.86 MAC Includes bibliographical references and index New York, Interscience Publishers [1966] [1966] 1966 Text xii, 444 p. ; eng Pure and applied mathematics, v. 13 Pure and applied mathematics (Interscience Publishers) ; v. 13.