APA (7th ed.) Citation

McCracken, D. D., & Garbassi, U. (1970). A guide to COBOL programming (2d ed.). Wiley-Interscience.

Chicago Style (17th ed.) Citation

McCracken, Daniel D., and Umberto Garbassi. A Guide to COBOL Programming. 2d ed. New York: Wiley-Interscience, 1970.

MLA (8th ed.) Citation

McCracken, Daniel D., and Umberto Garbassi. A Guide to COBOL Programming. 2d ed. Wiley-Interscience, 1970.