Cita APA

Berman, G., & Fryer, K. D. (1972). Introduction to combinatorics. Academic Press.

Citación estilo Chicago

Berman, Gerald, and K. D. Fryer. Introduction to Combinatorics. Nueva York: Academic Press, 1972.

Cita MLA

Berman, Gerald, and K. D. Fryer. Introduction to Combinatorics. Academic Press, 1972.

Warning: These citations may not always be 100% accurate.