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* Claude Berge|Berge, Claude, ''Théorie des graphes et ses applications''. Collection Universitaire de Mathématiques, II Dunod, Paris 1958, viii+277 pp. (English edition, Wiley 1961; Methuen & Co, New York 1962; Russian, Moscow 1961; Spanish, Mexico 1962; Roumanian, Bucharest 1969; Chinese, Shanghai 1963; Second printing of the 1962 first English edition. Dover, New York 2001)

* Claude Berge|Berge, Claude, ''Théorie des graphes et ses applications''. Collection Universitaire de Mathématiques, II Dunod, Paris 1958, viii+277 pp. (English edition, Wiley 1961; Methuen & Co, New York 1962; Russian, Moscow 1961; Spanish, Mexico 1962; Roumanian, Bucharest 1969; Chinese, Shanghai 1963; Second printing of the 1962 first English edition. Dover, New York 2001)

* {{Cite book | last=Chartrand | first=Gary | authorlink=Gary Chartrand | title=Introductory graph theory | date=1985 | publisher=Dover | location=New York | isbn=0-486-24775-9 | pages= | url-access=registration | url=https://archive.org/details/introductorygrap0000char }}

* {{Cite book | last=Chartrand | first=Gary | Gary Chartrand | title=Introductory graph theory | date=1985 | publisher=Dover | location=New York | isbn=0-486-24775-9 | pages= | url-access=registration | url=https://archive.org/details/introductorygrap0000char }}

* {{Cite book |author1=Biggs, Norman |author2=Lloyd, E. H. |author3=Wilson, Robin J. | title=Graph theory, 1736-1936 | date=1986 | publisher=Clarendon Press | location=Oxford [Oxfordshire] | isbn=0-19-853916-9 | pages=|title-link=Graph Theory, 1736–1936}}

* {{Cite book |author1=Biggs, Norman |author2=Lloyd, E. H. |author3=Wilson, Robin J. | title=Graph theory, 1736-1936 | date=1986 | publisher=Clarendon Press | location=Oxford [Oxfordshire] | isbn=0-19-853916-9 | pages=|title-link=Graph Theory, 1736–1936}}