Cita APA (7th ed.)

Wilson, R. J., & Watkins, J. J. (1990). Graphs an introductory approach: A first course in discrete mathematics. John Wiley.

Cita Chicago (17th ed.)

Wilson, Robin J., i John J. Watkins. Graphs an Introductory Approach: A First Course in Discrete Mathematics. Nueva York: John Wiley, 1990.

Cita MLA (9th ed.)

Wilson, Robin J., i John J. Watkins. Graphs an Introductory Approach: A First Course in Discrete Mathematics. John Wiley, 1990.