Gaya APA
Mac OS X Lion Edition. (2012).
New York:
McGraw-Hill.
Gaya Chicago
Mac OS X Lion Edition.
.
New York:
McGraw-Hill,
2012.
.
Gaya MLA
Mac OS X Lion Edition.
.
New York:
McGraw-Hill,
2012.
.
Gaya Turabian
Mac OS X Lion Edition.
New York:
McGraw-Hill,
2012.
.