Cita APA (7a ed.)

Sin autor. (1981). Graphtheoretic concepts in computer science: Proceedings of the International Workshop WG 80, Bad Honnef, June 15-18, 1980. [S.n.].

Cita Chicago Style (17a ed.)

Sin autor. Graphtheoretic Concepts in Computer Science: Proceedings of the International Workshop WG 80, Bad Honnef, June 15-18, 1980. Berlín: [S.n.], 1981.

Cita MLA (9a ed.)

Sin autor. Graphtheoretic Concepts in Computer Science: Proceedings of the International Workshop WG 80, Bad Honnef, June 15-18, 1980. [S.n.], 1981.