Penggayaan APA
THE WORLD almanac and book of facts 1981. (1981).
New York:
Newspaper Enterprise Association.
Chicago Style
THE WORLD almanac and book of facts 1981.
.
New York:
Newspaper Enterprise Association,
1981.
Buku.
MLA Style
THE WORLD almanac and book of facts 1981.
.
New York:
Newspaper Enterprise Association,
1981.
Buku.
Turabian Style
THE WORLD almanac and book of facts 1981.
New York:
Newspaper Enterprise Association,
1981.
Buku.