APA Citation

(1990). World resources 1990-1991. New York ; Oxford, England: Oxford University Press.

Chicago Style Citation

World Resources 1990-1991. New York ; Oxford, England: Oxford University Press, 1990.

MLA Citation

World Resources 1990-1991. New York ; Oxford, England: Oxford University Press, 1990.

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