Penggayaan APA
Swan. (1988).
Practical english usage .
New York:
Oxford University Press.
Chicago Style
Swan.
Practical english usage.
New York:
Oxford University Press,
1988.
Text.
MLA Style
Swan.
Practical english usage.
New York:
Oxford University Press,
1988.
Text.
Turabian Style
Swan.
Practical english usage.
New York:
Oxford University Press,
1988.
Print.