APA Style
Azar, Betty Schrampfer. (1989).
Understanding and using english grammar-second edition / Betty Schrampfer Azar .
New Jersey:
Prentice Hall.
Chicago Style
Azar, Betty Schrampfer.
Understanding and using english grammar-second edition / Betty Schrampfer Azar.
New Jersey:
Prentice Hall,
1989.
Text.
MLA Style
Azar, Betty Schrampfer.
Understanding and using english grammar-second edition / Betty Schrampfer Azar.
New Jersey:
Prentice Hall,
1989.
Text.
Turabian Style
Azar, Betty Schrampfer.
Understanding and using english grammar-second edition / Betty Schrampfer Azar.
New Jersey:
Prentice Hall,
1989.
Print.