Cita APA (7a ed.)

Buckley, F., & Harary, F. (1990). Distance in graphs (1a ed.). Addison-Wesley.

Cita Chicago Style (17a ed.)

Buckley, Fred, y Frank Harary. Distance in Graphs. 1a ed. Redwood City: Addison-Wesley, 1990.

Cita MLA (9a ed.)

Buckley, Fred, y Frank Harary. Distance in Graphs. 1a ed. Addison-Wesley, 1990.