Bogart, K. P. (1990). Introductory Combinatorics. New York: Harcourt Brace Jovanovich.
Chicago Style aipamenaBogart, Kenneth P. Introductory Combinatorics. New York: Harcourt Brace Jovanovich, 1990.
MLA aipamenaBogart, Kenneth P. Introductory Combinatorics. New York: Harcourt Brace Jovanovich, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.