Gaya APA
Koestler, Arthur. (1972).
The Call Girl .
London:
Pan Books.
Gaya Chicago
Koestler, Arthur.
The Call Girl.
London:
Pan Books,
1972.
.
Gaya MLA
Koestler, Arthur.
The Call Girl.
London:
Pan Books,
1972.
.
Gaya Turabian
Koestler, Arthur.
The Call Girl.
London:
Pan Books,
1972.
.