Gaya APA
Economic Handbook Of The World 1981. (1981).
New York:
McGRAW-HILL BOOK COMPANY.
Gaya Chicago
Economic Handbook Of The World 1981.
.
New York:
McGRAW-HILL BOOK COMPANY,
1981.
Teks.
Gaya MLA
Economic Handbook Of The World 1981.
.
New York:
McGRAW-HILL BOOK COMPANY,
1981.
Teks.
Gaya Turabian
Economic Handbook Of The World 1981.
New York:
McGRAW-HILL BOOK COMPANY,
1981.
Teks.