O'Kelly, M., Ryan-Enright, M., Whelan, D., & Geoghegan, A. (1990). Discover our world: Environmental studies; nature, civics, science (Third class.). Folens.
Chicago Style (17th ed.) CitationO'Kelly, Mary, Mary Ryan-Enright, Deirdre Whelan, and Adrienne Geoghegan. Discover Our World: Environmental Studies; Nature, Civics, Science. Third class. Dublin: Folens, 1990.
MLA (9th ed.) CitationO'Kelly, Mary, et al. Discover Our World: Environmental Studies; Nature, Civics, Science. Third class. Folens, 1990.
Warning: These citations may not always be 100% accurate.