Gaya APA
ALTER, Steven. (1992).
Information Systems .
United State America:
The Benjamin/Cummings Publishing Co.,Inc..
Gaya Chicago
ALTER, Steven.
Information Systems.
United State America:
The Benjamin/Cummings Publishing Co.,Inc.,
1992.
Text.
Gaya MLA
ALTER, Steven.
Information Systems.
United State America:
The Benjamin/Cummings Publishing Co.,Inc.,
1992.
Text.
Gaya Turabian
ALTER, Steven.
Information Systems.
United State America:
The Benjamin/Cummings Publishing Co.,Inc.,
1992.
Print.