Gaya APA
HELLER, H.Robert. (1968).
International Trade, Theory and empirical evidence .
New Jersey:
Prentice Hall.
Gaya Chicago
HELLER, H.Robert.
International Trade, Theory and empirical evidence.
New Jersey:
Prentice Hall,
1968.
Monograf.
Gaya MLA
HELLER, H.Robert.
International Trade, Theory and empirical evidence.
New Jersey:
Prentice Hall,
1968.
Monograf.
Gaya Turabian
HELLER, H.Robert.
International Trade, Theory and empirical evidence.
New Jersey:
Prentice Hall,
1968.
Monograf.