Gaya APA
Richards, J.C., Long, M.N.. (1981).
Breakthrough : A Course in English Communication Practice .
Oxford:
Oxford University Press.
Gaya Chicago
Richards, J.C., Long, M.N..
Breakthrough : A Course in English Communication Practice.
Oxford:
Oxford University Press,
1981.
Text.
Gaya MLA
Richards, J.C., Long, M.N..
Breakthrough : A Course in English Communication Practice.
Oxford:
Oxford University Press,
1981.
Text.
Gaya Turabian
Richards, J.C., Long, M.N..
Breakthrough : A Course in English Communication Practice.
Oxford:
Oxford University Press,
1981.
Print.