Gaya APA
Azar, Betty Schrampfer. (1989).
Understanding and using: english grammar / Betty Schrampfer Azar (2nd Ed.).
:
New Jersey : Prentice-Hall.
Gaya Chicago
Azar, Betty Schrampfer.
Understanding and using: english grammar / Betty Schrampfer Azar.
2nd Ed.
:
New Jersey : Prentice-Hall,
1989.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Understanding and using: english grammar / Betty Schrampfer Azar.
2nd Ed.
:
New Jersey : Prentice-Hall,
1989.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding and using: english grammar / Betty Schrampfer Azar.
2nd Ed.
:
New Jersey : Prentice-Hall,
1989.
Buku.