APA (7th ed.) Citation

Percus, J. K. (1971). Combinatorial methods. Springer-Verlag.

Chicago Style (17th ed.) Citation

Percus, J. K. Combinatorial Methods. Nueva York: Springer-Verlag, 1971.

MLA (9th ed.) Citation

Percus, J. K. Combinatorial Methods. Springer-Verlag, 1971.