APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Percus, Jerome K. Combinatorial Methods. New York: Springer Verlag, 1971.

MLA (8th ed.) Citation

Percus, Jerome K. Combinatorial Methods. Springer Verlag, 1971.