Gaya APA
Davis, Polly. (1987).
English structure in focus .
Amerika Serikat:
Newbury House.
Gaya Chicago
Davis, Polly.
English structure in focus.
Amerika Serikat:
Newbury House,
1987.
Text.
Gaya MLA
Davis, Polly.
English structure in focus.
Amerika Serikat:
Newbury House,
1987.
Text.
Gaya Turabian
Davis, Polly.
English structure in focus.
Amerika Serikat:
Newbury House,
1987.
Print.