APA (7th ed.) Citation

Gibson, R., Werbell, B., & Wigander, K. (1984). Structured analysis and design of information systems.

Chicago Style (17th ed.) Citation

Gibson, R., B. Werbell, and Karl-Olof Wigander. Structured Analysis and Design of Information Systems. 1984.

MLA (9th ed.) Citation

Gibson, R., et al. Structured Analysis and Design of Information Systems. 1984.