Gaya APA
Essential English dictionary. (1994).
London:
Collins.
Gaya Chicago
Essential English dictionary.
.
London:
Collins,
1994.
Buku.
Gaya MLA
Essential English dictionary.
.
London:
Collins,
1994.
Buku.
Gaya Turabian
Essential English dictionary.
London:
Collins,
1994.
Buku.