APA Style
Stallings,William. (1997).
Operating System (4th.).
USA:
Prentice Hall.
Chicago Style
Stallings,William.
Operating System.
4th.
USA:
Prentice Hall,
1997.
Book.
MLA Style
Stallings,William.
Operating System.
4th.
USA:
Prentice Hall,
1997.
Book.
Turabian Style
Stallings,William.
Operating System.
4th.
USA:
Prentice Hall,
1997.
Book.