APA (7th ed.) Citation

Roman, S. (1989). An Introduction to discrete mathematics (2nd ed.). Harcourt Brace Jovanovich Publishers.

Chicago Style (17th ed.) Citation

Roman, Steven. An Introduction to Discrete Mathematics. 2nd ed. San Diego: Harcourt Brace Jovanovich Publishers, 1989.

MLA (9th ed.) Citation

Roman, Steven. An Introduction to Discrete Mathematics. 2nd ed. Harcourt Brace Jovanovich Publishers, 1989.