Penggayaan APA
DAVIS, William S. (1978).
Operating systems : .
Massachusetts:
Addison-Wesley.
Chicago Style
DAVIS, William S.
Operating systems :.
Massachusetts:
Addison-Wesley,
1978.
Buku.
MLA Style
DAVIS, William S.
Operating systems :.
Massachusetts:
Addison-Wesley,
1978.
Buku.
Turabian Style
DAVIS, William S.
Operating systems :.
Massachusetts:
Addison-Wesley,
1978.
Buku.