APA (7th ed.) Citation

Elliot, C. O. (1968). Business information processing systems (Rev. ed.). Irwin.

Chicago Style (17th ed.) Citation

Elliot, C. Orvulle. Business Information Processing Systems. Rev. ed. Homewood, Ill: Irwin, 1968.

MLA (9th ed.) Citation

Elliot, C. Orvulle. Business Information Processing Systems. Rev. ed. Irwin, 1968.