APA (7th ed.) Citation

UNICEF. (1990). The state of the world's children 1990. Oxford University Press.

Chicago Style (17th ed.) Citation

UNICEF. The State of the World's Children 1990. Oxford, England: Oxford University Press, 1990.

MLA (9th ed.) Citation

UNICEF. The State of the World's Children 1990. Oxford University Press, 1990.