Dyfyniad APA

Brualdi, R. A. (2004). Introductory combinatorics (4th ed.). Pearson/Prentice Hall.

Dyfyniad Arddull Chicago

Brualdi, Richard A. Introductory Combinatorics. 4th ed. Upper Saddle River, N.J. ; New Delhi: Pearson/Prentice Hall, 2004.

Dyfyniad MLA

Brualdi, Richard A. Introductory Combinatorics. 4th ed. Pearson/Prentice Hall, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.