APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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