Cita APA (7a ed.)
O'Leary, T. J., & Williams, B. K. (1989). Computers and information systems (2nd ed.). Benjamin/Cummings Pub. Co.
Cita Chicago Style (17a ed.)
O'Leary, Timothy J., y Brian K. Williams. Computers and Information Systems. 2nd ed. Redwood City, Calif: Benjamin/Cummings Pub. Co, 1989.
Cita MLA (9a ed.)
O'Leary, Timothy J., y Brian K. Williams. Computers and Information Systems. 2nd ed. Benjamin/Cummings Pub. Co, 1989.
Precaución: Estas citas no son 100% exactas.