APA (7th ed.) Citation

Andreescu, T., & Feng, Z. (2004). A path to combinatorics for undergraduates: Counting strategies. Birkhäuser.

Chicago Style (17th ed.) Citation

Andreescu, Titu, and Zuming Feng. A Path to Combinatorics for Undergraduates: Counting Strategies. Boston: Birkhäuser, 2004.

MLA (9th ed.) Citation

Andreescu, Titu, and Zuming Feng. A Path to Combinatorics for Undergraduates: Counting Strategies. Birkhäuser, 2004.