Wilson, R. J. (1990). Graphs: An Introductory Approach. John Wiley & Sons.
Chicago Style (17th ed.) ZitazioaWilson, R. J. Graphs: An Introductory Approach. London: John Wiley & Sons, 1990.
MLA (9th ed.) ZitazioaWilson, R. J. Graphs: An Introductory Approach. John Wiley & Sons, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.