Cita APA (7th ed.)
Lawlor Steven C. (1990). Computer information systems (ed.). Harcourt Brace Jovanovich.
Cita Chicago (17th ed.)
Lawlor Steven C. Computer Information Systems. ed. New York: Harcourt Brace Jovanovich, 1990.
Cita MLA (9th ed.)
Lawlor Steven C. Computer Information Systems. ed. Harcourt Brace Jovanovich, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.