APA (7th ed.) Citation

World Resources Institute. (1991). The ... information please environmental almanac. Houghton Mifflin Co.

Chicago Style (17th ed.) Citation

World Resources Institute. The ... Information Please Environmental Almanac. Boston: Houghton Mifflin Co, 1991.

MLA (9th ed.) Citation

World Resources Institute. The ... Information Please Environmental Almanac. Houghton Mifflin Co, 1991.

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