APA Style
Stallings, William. (2001).
Operating systems (4th ed.).
London:
.
Chicago Style
Stallings, William.
Operating systems.
4th ed.
London:
,
2001.
Text.
MLA Style
Stallings, William.
Operating systems.
4th ed.
London:
,
2001.
Text.
Turabian Style
Stallings, William.
Operating systems.
4th ed.
London:
,
2001.
Print.