APA (7th ed.) Citation

Perry, W. E. (1981). Auditing data systems. EDP Auditors Foundation.

Chicago Style (17th ed.) Citation

Perry, William E. Auditing Data Systems. Carol Stream, IL: EDP Auditors Foundation, 1981.

MLA (9th ed.) Citation

Perry, William E. Auditing Data Systems. EDP Auditors Foundation, 1981.