APA (7th ed.) Citation

UNITED NATIONS. (1992). Policy Challenges And Options For Cooperation. UN.

Chicago Style (17th ed.) Citation

UNITED NATIONS. Policy Challenges And Options For Cooperation. New York: UN, 1992.

MLA (8th ed.) Citation

UNITED NATIONS. Policy Challenges And Options For Cooperation. UN, 1992.

Warning: These citations may not always be 100% accurate.