APA (7th ed.) Citation

Gall, S. B., & Antone, M. K. (2012). Worldmark encyclopedia of U.S. and Canadian environmental issues. Gale Cengage Learning.

Chicago Style (17th ed.) Citation

Gall, Susan B., and Margaret K. Antone. Worldmark Encyclopedia of U.S. and Canadian Environmental Issues. Farmington Hills, MI: Gale Cengage Learning, 2012.

MLA (9th ed.) Citation

Gall, Susan B., and Margaret K. Antone. Worldmark Encyclopedia of U.S. and Canadian Environmental Issues. Gale Cengage Learning, 2012.