APA Style

O'Leary, T, J., Williams, B, K. (1989). Computers and information systems / T. J. O'Leary and Brian K. Williams (2). California: Benjamin/Cummings Pub..

MLA Style

O'Leary, T., J.., Williams, Brian, K.. "Computers and information systems / T. J. O'Leary and Brian K. Williams". 2 California: Benjamin/Cummings Pub., 1989. Textbook ห้องสมุดทั่วไป.