Gaya APA
Evans, Lord dkk.. (1970).
English course .
London:
Linguaphone Institute.
Gaya Chicago
Evans, Lord dkk..
English course.
London:
Linguaphone Institute,
1970.
Text.
Gaya MLA
Evans, Lord dkk..
English course.
London:
Linguaphone Institute,
1970.
Text.
Gaya Turabian
Evans, Lord dkk..
English course.
London:
Linguaphone Institute,
1970.
Print.