Cita APA (7th ed.)

Clifford, S. H., Sawyer, S. C., & Stallings, W. D. (1990). Computers: The user perspective (2nd ed., Lotus ed.). Irwin.

Cita Chicago (17th ed.)

Clifford, Sarah Hutchinson, Stacey C. Sawyer, i Warren D. Stallings. Computers: The User Perspective. 2nd ed., Lotus ed. Homewood, IL: Irwin, 1990.

Cita MLA (8th ed.)

Clifford, Sarah Hutchinson, et al. Computers: The User Perspective. 2nd ed., Lotus ed. Irwin, 1990.