Cita APA (7th ed.)

Bollobas, B. (1979). Graph theory: An introductory Course. Springer-Verlag.

Cita Chicago (17th ed.)

Bollobas, Bela. Graph Theory: An Introductory Course. New York: Springer-Verlag, 1979.

Cita MLA (9th ed.)

Bollobas, Bela. Graph Theory: An Introductory Course. Springer-Verlag, 1979.