Cita APA (7th ed.)

Computer Usage Company & Weiss, E. A. (1975). Computer usage: Fundamentals (2nd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Computer Usage Company i Eric A. Weiss. Computer Usage: Fundamentals. 2nd ed. New York: McGraw-Hill, 1975.

Cita MLA (9th ed.)

Computer Usage Company i Eric A. Weiss. Computer Usage: Fundamentals. 2nd ed. McGraw-Hill, 1975.