Gaya APA
Crystal, David. (1984).
Advanced conversational English / David Crystal, Derek Davy .
:
Burnt Mill : Longman.
Gaya Chicago
Crystal, David.
Advanced conversational English / David Crystal, Derek Davy.
:
Burnt Mill : Longman,
1984.
Buku.
Gaya MLA
Crystal, David.
Advanced conversational English / David Crystal, Derek Davy.
:
Burnt Mill : Longman,
1984.
Buku.
Gaya Turabian
Crystal, David.
Advanced conversational English / David Crystal, Derek Davy.
:
Burnt Mill : Longman,
1984.
Buku.