Παραπομπή APA

Harary, F., & Harary, F. (1969). Proof techniques in graph theory: Proceedings. Academic Press.

Παραπομπή Chicago Style

Harary, Frank,ed, και Frank Harary. Proof Techniques in Graph Theory: Proceedings. New York: Academic Press, 1969.

Παραπομπή MLA

Harary, Frank,ed, και Frank Harary. Proof Techniques in Graph Theory: Proceedings. Academic Press, 1969.