APA (7th ed.) Citation

Conway, R., Gries, D., & Wortman, D. B. (1977). Introduction to structured programming: Using PL/I and SP/k. Winthrop.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Conway, Richard, et al. Introduction to Structured Programming: Using PL/I and SP/k. Winthrop, 1977.