Παραπομπή APA

Bang-Jensen, J., & Gutin, G. z. (2010). Digraphs: Theory, algorithms and applications (2nd ed.). Springer.

Παραπομπή Chicago Style

Bang-Jensen, Jorgen, και Gregory z. Gutin. Digraphs: Theory, Algorithms and Applications. 2nd ed. London: Springer, 2010.

Παραπομπή MLA

Bang-Jensen, Jorgen, και Gregory z. Gutin. Digraphs: Theory, Algorithms and Applications. 2nd ed. Springer, 2010.