APA
Andreescu T. Z., . (2005). Path to Combinatorics for Undergraduates. NY: Springer.
Chicago
Andreescu Titu:Feng Zuming, . 2005. Path to Combinatorics for Undergraduates. NY: Springer.
Harvard
Andreescu T. Z., . (2005). Path to Combinatorics for Undergraduates. NY: Springer.
MLA
Andreescu Titu:Feng Zuming, . Path to Combinatorics for Undergraduates. NY: Springer. 2005.