Gaya APA
Lawlor, Steven C.. (1992).
Computer Information systems (2nd.ed).
New York:
The Dryden Press.
Gaya Chicago
Lawlor, Steven C..
Computer Information systems.
2nd.ed
New York:
The Dryden Press,
1992.
.
Gaya MLA
Lawlor, Steven C..
Computer Information systems.
2nd.ed
New York:
The Dryden Press,
1992.
.
Gaya Turabian
Lawlor, Steven C..
Computer Information systems.
2nd.ed
New York:
The Dryden Press,
1992.
.