Cita APA (7a ed.)

Percus, J. (1971). Combinatorial methods (1a ed.). Springer-Verlag.

Cita Chicago Style (17a ed.)

Percus, J.K. Combinatorial Methods. 1a ed. New York: Springer-Verlag, 1971.

Cita MLA (9a ed.)

Percus, J.K. Combinatorial Methods. 1a ed. Springer-Verlag, 1971.