Roberts, F. S. (1989). Applications of combinatorics and graph theory to the biological and social sciences. Springer-Verlag.
Cita Chicago (17th ed.)Roberts, Fred S. Applications of Combinatorics and Graph Theory to the Biological and Social Sciences. New York ; Berlin: Springer-Verlag, 1989.
Cita MLA (8th ed.)Roberts, Fred S. Applications of Combinatorics and Graph Theory to the Biological and Social Sciences. Springer-Verlag, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.