APA (7th ed.) Citation

Johnston, C. N., & Powers, M. (2016). Principles of environmental law. West Academic Publishing.

Chicago Style (17th ed.) Citation

Johnston, Craig N., and Melissa Powers. Principles of Environmental Law. St. Paul, MN: West Academic Publishing, 2016.

MLA (8th ed.) Citation

Johnston, Craig N., and Melissa Powers. Principles of Environmental Law. West Academic Publishing, 2016.