Cita APA (7th ed.)

Brualdi, R. A. (2012). Introductory combinatorics (5th ed., International ed.). Pearson/Prentice Hall.

Cita Chicago (17th ed.)

Brualdi, Richard A. Introductory Combinatorics. 5th ed., International ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2012.

Cita MLA (9th ed.)

Brualdi, Richard A. Introductory Combinatorics. 5th ed., International ed. Pearson/Prentice Hall, 2012.