APA (7th ed.) Citation

Andreescu Titu. (2007). A path to combinatorics for undergraduates: Counting strategies. Viva books pte ltd.

Chicago Style (17th ed.) Citation

Andreescu Titu. A Path to Combinatorics for Undergraduates: Counting Strategies. New Delhi: Viva books pte ltd, 2007.

MLA (9th ed.) Citation

Andreescu Titu. A Path to Combinatorics for Undergraduates: Counting Strategies. Viva books pte ltd, 2007.