Gaya APA
Azar, Betty Schrampfer. (1989).
Understanding and Using English Grammar (Second Edition).
New Jersey:
Prentice-Hall.
Gaya Chicago
Azar, Betty Schrampfer.
Understanding and Using English Grammar.
Second Edition
New Jersey:
Prentice-Hall,
1989.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Understanding and Using English Grammar.
Second Edition
New Jersey:
Prentice-Hall,
1989.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding and Using English Grammar.
Second Edition
New Jersey:
Prentice-Hall,
1989.
Buku.