Gaya APA
Richards, Jack C.. (1990).
New Interchange English for International Communication 1 .
United Kingdom:
Cambridge University Press.
Gaya Chicago
Richards, Jack C..
New Interchange English for International Communication 1.
United Kingdom:
Cambridge University Press,
1990.
Text.
Gaya MLA
Richards, Jack C..
New Interchange English for International Communication 1.
United Kingdom:
Cambridge University Press,
1990.
Text.
Gaya Turabian
Richards, Jack C..
New Interchange English for International Communication 1.
United Kingdom:
Cambridge University Press,
1990.
Print.