APA (7th ed.) Citation

Conway, R. A., Gries, D., & Wortman, D. B. (1977). Introduction to structured programming using PL/1 and SP/k. Winthrop Publishers.

Chicago Style (17th ed.) Citation

Conway, Richard A., David Gries, and David B. Wortman. Introduction to Structured Programming Using PL/1 and SP/k. Cambridge: Winthrop Publishers, 1977.

MLA (9th ed.) Citation

Conway, Richard A., et al. Introduction to Structured Programming Using PL/1 and SP/k. Winthrop Publishers, 1977.