Citazione Stile APA (7a Edizione)

Oppenheim, C., & Citroen, C. L. (1989). Perspectives in information management 1. Butterworths.

Citazione stile Chigago Style (17a edizione)

Oppenheim, Charles, e Charles L. Citroen. Perspectives in Information Management 1. London: Butterworths, 1989.

Citatione MLA (9a ed.)

Oppenheim, Charles, e Charles L. Citroen. Perspectives in Information Management 1. Butterworths, 1989.