Gaya APA
Szymanski, Robert, Szymanski, Donald P.. (2003).
Computers and information systems .
UK:
Prentice Hall.
Gaya Chicago
Szymanski, Robert, Szymanski, Donald P..
Computers and information systems.
UK:
Prentice Hall,
2003.
Text.
Gaya MLA
Szymanski, Robert, Szymanski, Donald P..
Computers and information systems.
UK:
Prentice Hall,
2003.
Text.
Gaya Turabian
Szymanski, Robert, Szymanski, Donald P..
Computers and information systems.
UK:
Prentice Hall,
2003.
Print.