APA (7th ed.) Citation

Vyshenskyi, V. (2021). Combinatorics: First Steps.

Chicago Style (17th ed.) Citation

Vyshenskyi, Volodymyr. Combinatorics: First Steps. 2021.

MLA (9th ed.) Citation

Vyshenskyi, Volodymyr. Combinatorics: First Steps. 2021.

Warning: These citations may not always be 100% accurate.