Gaya APA
GATEWAY : Frankfurt. (1997).
Frankfurt:
Franfurt Highbury House Communications PLC.
Gaya Chicago
GATEWAY : Frankfurt.
.
Frankfurt:
Franfurt Highbury House Communications PLC,
1997.
Text.
Gaya MLA
GATEWAY : Frankfurt.
.
Frankfurt:
Franfurt Highbury House Communications PLC,
1997.
Text.
Gaya Turabian
GATEWAY : Frankfurt.
Frankfurt:
Franfurt Highbury House Communications PLC,
1997.
Print.