Gaya APA
A Practical English Grammar. (1972).
London:
Oxford University Press.
Gaya Chicago
A Practical English Grammar.
Edisi IX.
London:
Oxford University Press,
1972.
Text.
Gaya MLA
A Practical English Grammar.
Edisi IX.
London:
Oxford University Press,
1972.
Text.
Gaya Turabian
A Practical English Grammar.
London:
Oxford University Press,
1972.
Print.