Magnus, W., Karrass, A., & Solitar, D. (2004). Combinatorial group theory: Presentations of groups in terms of generators and relations. Dover Publications.
Chicago Edition CitationMagnus, Wilhelm, Abraham Karrass, and Donald Solitar. Combinatorial Group Theory: Presentations of Groups in Terms of Generators and Relations. Mineola, N.Y.: Dover Publications, 2004.
MLA Edition CitationMagnus, Wilhelm, et al. Combinatorial Group Theory: Presentations of Groups in Terms of Generators and Relations. Dover Publications, 2004.
Warning: These citations may not always be 100% accurate.