Cita APA (7a ed.)

Lawlor Steven C. (1990). Computer information systems (ed.). Harcourt Brace Jovanovich.

Cita Chicago Style (17a ed.)

Lawlor Steven C. Computer Information Systems. ed. New York: Harcourt Brace Jovanovich, 1990.

Cita MLA (9a ed.)

Lawlor Steven C. Computer Information Systems. ed. Harcourt Brace Jovanovich, 1990.