Gaya APA
Richards, Jack C.. (1990).
Interchange: English for International Communication: Workbook 3 .
United Kindom:
Cambridge Universiity Press.
Gaya Chicago
Richards, Jack C..
Interchange: English for International Communication: Workbook 3.
United Kindom:
Cambridge Universiity Press,
1990.
Buku.
Gaya MLA
Richards, Jack C..
Interchange: English for International Communication: Workbook 3.
United Kindom:
Cambridge Universiity Press,
1990.
Buku.
Gaya Turabian
Richards, Jack C..
Interchange: English for International Communication: Workbook 3.
United Kindom:
Cambridge Universiity Press,
1990.
Buku.