WILSON, R. J. (1990). Graphs An Introductory Approach: A First Course In Discrete Mathemathics Robin J. Wilson , John J. Watkins. John Willey & Sons.
Chicago-viite (17. p.)WILSON, Robin J. Graphs An Introductory Approach: A First Course In Discrete Mathemathics Robin J. Wilson , John J. Watkins. John Willey & Sons, 1990.
MLA-viite (8. p.)WILSON, Robin J. Graphs An Introductory Approach: A First Course In Discrete Mathemathics Robin J. Wilson , John J. Watkins. John Willey & Sons, 1990.
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