Gaya APA
Azar, Betty Schampfrer. (1999).
Understanding And Using English Grammar (3).
Amerika:
Longman.
Gaya Chicago
Azar, Betty Schampfrer.
Understanding And Using English Grammar.
3
Amerika:
Longman,
1999.
Text.
Gaya MLA
Azar, Betty Schampfrer.
Understanding And Using English Grammar.
3
Amerika:
Longman,
1999.
Text.
Gaya Turabian
Azar, Betty Schampfrer.
Understanding And Using English Grammar.
3
Amerika:
Longman,
1999.
Print.