Gaya APA
Azar, Betty Schrampfer. (1989).
Understanding and using english grammar (second edition) (Ed. 2).
New Jersey:
Prentice Hall Regents.
Gaya Chicago
Azar, Betty Schrampfer.
Understanding and using english grammar (second edition).
Ed. 2
New Jersey:
Prentice Hall Regents,
1989.
Text.
Gaya MLA
Azar, Betty Schrampfer.
Understanding and using english grammar (second edition).
Ed. 2
New Jersey:
Prentice Hall Regents,
1989.
Text.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding and using english grammar (second edition).
Ed. 2
New Jersey:
Prentice Hall Regents,
1989.
Print.