Penggayaan APA
DEMOGRAPHICS Yearbook :. (1990).
New York:
United Nations.
Chicago Style
DEMOGRAPHICS Yearbook :.
.
New York:
United Nations,
1990.
Buku.
MLA Style
DEMOGRAPHICS Yearbook :.
.
New York:
United Nations,
1990.
Buku.
Turabian Style
DEMOGRAPHICS Yearbook :.
New York:
United Nations,
1990.
Buku.