Gaya APA
Azar, Betty Schrampfer. (2003).
Fundamentals of english grammar (3rd Edition).
New York:
Longman.
Gaya Chicago
Azar, Betty Schrampfer.
Fundamentals of english grammar.
3rd Edition
New York:
Longman,
2003.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Fundamentals of english grammar.
3rd Edition
New York:
Longman,
2003.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Fundamentals of english grammar.
3rd Edition
New York:
Longman,
2003.
Buku.