APA Style
Schrampfer, A., B. (1989).
Understanding and using english grammar / Betty Schrampfer Azar .
New Jersey:
Prentice Hall Regent,.
MLA Style
Schrampfer, A., B..
Understanding and using english grammar / Betty Schrampfer Azar.
New Jersey:
Prentice Hall Regent,,
1989.
Text.