Gaya APA
Szymanski, R, A, ,, D, P., M.Pulschen, D. (1995).
Computers & Information Systems (cetakan 1).
London:
Prentice hall international.
Gaya MLA
Szymanski, Robert, A.Szymanski, ,, Donald, P., M.Pulschen, Donna.
"Computers & Information Systems".
cetakan 1
London:
Prentice hall international,
1995.
Text.