Gaya APA
Richards, J. C., Long, M.N.. (1985).
Breakthrough : a course in English communication practice (New ed.).
Oxford:
Oxford University Press.
Gaya Chicago
Richards, J. C., Long, M.N..
Breakthrough : a course in English communication practice.
New ed.
Oxford:
Oxford University Press,
1985.
Text.
Gaya MLA
Richards, J. C., Long, M.N..
Breakthrough : a course in English communication practice.
New ed.
Oxford:
Oxford University Press,
1985.
Text.
Gaya Turabian
Richards, J. C., Long, M.N..
Breakthrough : a course in English communication practice.
New ed.
Oxford:
Oxford University Press,
1985.
Print.