Cita APA (7th ed.)

Floyd, N. A. (1991). Essentials of information processing (3rd ed.). Irwin.

Cita Chicago (17th ed.)

Floyd, Nancy A. Essentials of Information Processing. 3rd ed. Homewood, Ill: Irwin, 1991.

Cita MLA (9th ed.)

Floyd, Nancy A. Essentials of Information Processing. 3rd ed. Irwin, 1991.