Gaya APA
HORNBY,A.S. (1967).
Oxford Progressive English Course .
London:
Oxford University Press.
Gaya Chicago
HORNBY,A.S.
Oxford Progressive English Course.
London:
Oxford University Press,
1967.
Teks.
Gaya MLA
HORNBY,A.S.
Oxford Progressive English Course.
London:
Oxford University Press,
1967.
Teks.
Gaya Turabian
HORNBY,A.S.
Oxford Progressive English Course.
London:
Oxford University Press,
1967.
Teks.