Gaya APA
UNIVERSITY OF BRADFORD. (1993).
New York:
WEST YORKSHIRE.
Gaya Chicago
UNIVERSITY OF BRADFORD.
.
New York:
WEST YORKSHIRE,
1993.
Text.
Gaya MLA
UNIVERSITY OF BRADFORD.
.
New York:
WEST YORKSHIRE,
1993.
Text.
Gaya Turabian
UNIVERSITY OF BRADFORD.
New York:
WEST YORKSHIRE,
1993.
Print.