Gaya APA
Understanding And Using English Grammar. (1989).
Brazil:
Betty Schrampfer Azar.
Gaya Chicago
Understanding And Using English Grammar.
2.
Brazil:
Betty Schrampfer Azar,
1989.
Buku.
Gaya MLA
Understanding And Using English Grammar.
2.
Brazil:
Betty Schrampfer Azar,
1989.
Buku.
Gaya Turabian
Understanding And Using English Grammar.
Brazil:
Betty Schrampfer Azar,
1989.
Buku.