APA (7th ed.) Citation

Köbler, J., Schöning, U., & Torán, J. (1993). The graph isomorphism problem: Its structural complexity. Birkhäuser.

Chicago Style (17th ed.) Citation

Köbler, Johannes, Uwe Schöning, and Jacobo Torán. The Graph Isomorphism Problem: Its Structural Complexity. Boston, Mass. [u.a.]: Birkhäuser, 1993.

MLA (9th ed.) Citation

Köbler, Johannes, et al. The Graph Isomorphism Problem: Its Structural Complexity. Birkhäuser, 1993.