WILSON, R. J. (1990). Graphs An Introductory Approach Robin J.wilson. John Wiley & Sons,Inc.
Lua i Stíl Chicago (17ú heag.)WILSON, Robin J. Graphs An Introductory Approach Robin J.wilson. John Wiley & Sons,Inc, 1990.
Lua MLA (8ú heag.)WILSON, Robin J. Graphs An Introductory Approach Robin J.wilson. John Wiley & Sons,Inc, 1990.
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