Gaya APA
Collins Cobuild English Grammar. (1990).
London:
William Collins & Sons Co.
Gaya Chicago
Collins Cobuild English Grammar.
.
London:
William Collins & Sons Co,
1990.
Buku.
Gaya MLA
Collins Cobuild English Grammar.
.
London:
William Collins & Sons Co,
1990.
Buku.
Gaya Turabian
Collins Cobuild English Grammar.
London:
William Collins & Sons Co,
1990.
Buku.