Gaya APA
Azar, Betty Schrampfer. (1989).
UNDERSTANDING AND USING : ENGLISH GRAMMAR (Pertama).
USA:
Prentice-Hall.
Gaya Chicago
Azar, Betty Schrampfer.
UNDERSTANDING AND USING : ENGLISH GRAMMAR.
Pertama
USA:
Prentice-Hall,
1989.
Text.
Gaya MLA
Azar, Betty Schrampfer.
UNDERSTANDING AND USING : ENGLISH GRAMMAR.
Pertama
USA:
Prentice-Hall,
1989.
Text.
Gaya Turabian
Azar, Betty Schrampfer.
UNDERSTANDING AND USING : ENGLISH GRAMMAR.
Pertama
USA:
Prentice-Hall,
1989.
Print.