Gaya APA
Biber, Douglas. (2004).
Longman Grammar of Spoken and Written English (ed.4).
Cina:
Longman.
Gaya Chicago
Biber, Douglas.
Longman Grammar of Spoken and Written English.
ed.4
Cina:
Longman,
2004.
.
Gaya MLA
Biber, Douglas.
Longman Grammar of Spoken and Written English.
ed.4
Cina:
Longman,
2004.
.
Gaya Turabian
Biber, Douglas.
Longman Grammar of Spoken and Written English.
ed.4
Cina:
Longman,
2004.
.