Gaya APA
International and Interregional Economic. (1957).
Amerika:
MCGraw Hill Book Company.
Gaya Chicago
International and Interregional Economic.
.
Amerika:
MCGraw Hill Book Company,
1957.
.
Gaya MLA
International and Interregional Economic.
.
Amerika:
MCGraw Hill Book Company,
1957.
.
Gaya Turabian
International and Interregional Economic.
Amerika:
MCGraw Hill Book Company,
1957.
.