APA (7th ed.) Citation

Riordan, J. (1967). An introduction to combinatorial analysis (4. print.). Wiley.

Chicago Style (17th ed.) Citation

Riordan, John. An Introduction to Combinatorial Analysis. 4. print. New York [u.a.]: Wiley, 1967.

MLA (9th ed.) Citation

Riordan, John. An Introduction to Combinatorial Analysis. 4. print. Wiley, 1967.