APA aipamena

UNICEF & Bellamy, C. (1999). The state of the world's children, 1999. UNICEF.

Chicago Style aipamena

UNICEF and Carol Bellamy. The State of the World's Children, 1999. New York: UNICEF, 1999.

MLA aipamena

UNICEF and Carol Bellamy. The State of the World's Children, 1999. UNICEF, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.