Gaya APA
International Economics. (1963).
Illinois:
Richard D. Irwin.
Gaya Chicago
International Economics.
3rd.ed..
Illinois:
Richard D. Irwin,
1963.
.
Gaya MLA
International Economics.
3rd.ed..
Illinois:
Richard D. Irwin,
1963.
.
Gaya Turabian
International Economics.
Illinois:
Richard D. Irwin,
1963.
.