APA (7th ed.) Citation

Whitten, J. L., Bentley, L. D., & Barlow, V. M. (1989). Systems Analysis & Design Methods (2nd ed.). Irwin.

Chicago Style (17th ed.) Citation

Whitten, Jeffrey L., Lonnie D. Bentley, and Victor M. Barlow. Systems Analysis & Design Methods. 2nd ed. Homewood, IL: Irwin, 1989.

MLA (9th ed.) Citation

Whitten, Jeffrey L., et al. Systems Analysis & Design Methods. 2nd ed. Irwin, 1989.