Chartrand, Gary
Introduction to graph theory
McGraw-Hill, 2005
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Morris, William T.
Analysis for materials handling management: an introduction
Richard D. Irwin, 1962
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Nora Hartsfield
Pearls in graph theory a comprehensive introduction/ Nora Hartsfield, Gerhard Ringel.
Academic Press , 1990
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Graph theory
editor, Bela Bollobas
North-Holland , 1982
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Gould, Ronald
Graph theory
The Benjamin Cumming , 1988
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