APA (7th ed.) Citation

Institute, W. R. (1990). World Resources:1990-91: A Report. O.U.P.

Chicago Style (17th ed.) Citation

Institute, World Resources. World Resources:1990-91: A Report. O.U.P, 1990.

MLA (9th ed.) Citation

Institute, World Resources. World Resources:1990-91: A Report. O.U.P, 1990.

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