APA (7th ed.) Citation

Cohen, D. E. (1989). Combinatorial group theory: A topological approach. Cambridge University Press.

Chicago Style (17th ed.) Citation

Cohen, Daniel E. Combinatorial Group Theory: A Topological Approach. Cambridge: Cambridge University Press, 1989.

MLA (9th ed.) Citation

Cohen, Daniel E. Combinatorial Group Theory: A Topological Approach. Cambridge University Press, 1989.