Gaya APA
Guide to patterns and usage in english. (1988).
New York:
Oxford University Press.
Gaya Chicago
Guide to patterns and usage in english.
.
New York:
Oxford University Press,
1988.
Text.
Gaya MLA
Guide to patterns and usage in english.
.
New York:
Oxford University Press,
1988.
Text.
Gaya Turabian
Guide to patterns and usage in english.
New York:
Oxford University Press,
1988.
Print.