Gaya APA
Richards,C.Jack. (1991).
New interchange englis for international comunication / Jack C.Richards (Ed.revisi).
United kingdom:
University Press.
Gaya Chicago
Richards,C.Jack.
New interchange englis for international comunication / Jack C.Richards.
Ed.revisi
United kingdom:
University Press,
1991.
Text.
Gaya MLA
Richards,C.Jack.
New interchange englis for international comunication / Jack C.Richards.
Ed.revisi
United kingdom:
University Press,
1991.
Text.
Gaya Turabian
Richards,C.Jack.
New interchange englis for international comunication / Jack C.Richards.
Ed.revisi
United kingdom:
University Press,
1991.
Print.