APA Style
Azar, Betty Schrampfer. (2002).
Understanding and using english grammar: with answer key (3rd ed.).
:
Longman.
Chicago Style
Azar, Betty Schrampfer.
Understanding and using english grammar: with answer key.
3rd ed.
:
Longman,
2002.
Text.
MLA Style
Azar, Betty Schrampfer.
Understanding and using english grammar: with answer key.
3rd ed.
:
Longman,
2002.
Text.
Turabian Style
Azar, Betty Schrampfer.
Understanding and using english grammar: with answer key.
3rd ed.
:
Longman,
2002.
Print.