Gaya APA
Richards,C. Jack. (1991).
Interchange/Jack C. Richards (Cet.1).
United kingdom:
University Press.
Gaya Chicago
Richards,C. Jack.
Interchange/Jack C. Richards.
Cet.1
United kingdom:
University Press,
1991.
Text.
Gaya MLA
Richards,C. Jack.
Interchange/Jack C. Richards.
Cet.1
United kingdom:
University Press,
1991.
Text.
Gaya Turabian
Richards,C. Jack.
Interchange/Jack C. Richards.
Cet.1
United kingdom:
University Press,
1991.
Print.