Cita APA

Jensen, T. R., & Toft, B. (1995). Graph coloring problems. Wiley.

Chicago Edition Citation

Jensen, Tommy R., i Bjarne Toft. Graph Coloring Problems. New York: Wiley, 1995.

Cita MLA

Jensen, Tommy R., i Bjarne Toft. Graph Coloring Problems. Wiley, 1995.