APA (7th ed.) Citation

Davis, G. B., & Litecky, C. R. (1971). Elementary Cobol programming: A step by step approach. McGraw - Hill Book Company.

Chicago Style (17th ed.) Citation

Davis, Gordon B., and Charles R. Litecky. Elementary Cobol Programming: A Step by Step Approach. New York: McGraw - Hill Book Company, 1971.

MLA (8th ed.) Citation

Davis, Gordon B., and Charles R. Litecky. Elementary Cobol Programming: A Step by Step Approach. McGraw - Hill Book Company, 1971.