APA Style

AZR, Betty Schrampfer. (1989). Understanding and using english grammar (1). America: Prentice Hall.

Chicago Style

AZR, Betty Schrampfer. Understanding and using english grammar. 1 America: Prentice Hall, 1989. Text.

MLA Style

AZR, Betty Schrampfer. Understanding and using english grammar. 1 America: Prentice Hall, 1989. Text.

Turabian Style

AZR, Betty Schrampfer. Understanding and using english grammar. 1 America: Prentice Hall, 1989. Print.