APA

Erickson M. J., . (1996). Introduction to combinatorics. New York: Wiley.

Chicago

Erickson Martin J, . 1996. Introduction to combinatorics. New York: Wiley.

Harvard

Erickson M. J., . (1996). Introduction to combinatorics. New York: Wiley.

MLA

Erickson Martin J, . Introduction to combinatorics. New York: Wiley. 1996.