APA (7th ed.) Citation

Bonno, J. A., & Fields, K. T. (1982). Introduction to cobol. Business Publication.

Chicago Style (17th ed.) Citation

Bonno, John A., and Kent T. Fields. Introduction to Cobol. Plano: Business Publication, 1982.

MLA (8th ed.) Citation

Bonno, John A., and Kent T. Fields. Introduction to Cobol. Business Publication, 1982.