Gaya APA
Crystal, David. (1983).
Investigating English style / David Crystal, Derek Davy .
:
London : Longmans.
Gaya Chicago
Crystal, David.
Investigating English style / David Crystal, Derek Davy.
:
London : Longmans,
1983.
Buku.
Gaya MLA
Crystal, David.
Investigating English style / David Crystal, Derek Davy.
:
London : Longmans,
1983.
Buku.
Gaya Turabian
Crystal, David.
Investigating English style / David Crystal, Derek Davy.
:
London : Longmans,
1983.
Buku.