APA (7th ed.) Citation

Davis, W. S., & Fisher, R. H. (1979). COBOl: An introduction to structured logic and modular program design (1. print.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Davis, William Stearns, and Richard H. Fisher. COBOl: An Introduction to Structured Logic and Modular Program Design. 1. print. Reading, Mass. [u.a.]: Addison-Wesley, 1979.

MLA (9th ed.) Citation

Davis, William Stearns, and Richard H. Fisher. COBOl: An Introduction to Structured Logic and Modular Program Design. 1. print. Addison-Wesley, 1979.