Gaya APA
Azar, Betty Schrampfer. (1999).
Understanding and using English Grammar : Betty Schramfer Azar (Ed. 3).
New York:
Longman.
Gaya Chicago
Azar, Betty Schrampfer.
Understanding and using English Grammar : Betty Schramfer Azar.
Ed. 3
New York:
Longman,
1999.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Understanding and using English Grammar : Betty Schramfer Azar.
Ed. 3
New York:
Longman,
1999.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding and using English Grammar : Betty Schramfer Azar.
Ed. 3
New York:
Longman,
1999.
Buku.