Gaya APA
Leighton, Richard I.. (1970).
Economics of international trade / Richard I. Leighton .
:
New York: McGraw-Hill Book Company.
Gaya Chicago
Leighton, Richard I..
Economics of international trade / Richard I. Leighton.
:
New York: McGraw-Hill Book Company,
1970.
Buku.
Gaya MLA
Leighton, Richard I..
Economics of international trade / Richard I. Leighton.
:
New York: McGraw-Hill Book Company,
1970.
Buku.
Gaya Turabian
Leighton, Richard I..
Economics of international trade / Richard I. Leighton.
:
New York: McGraw-Hill Book Company,
1970.
Buku.