APA (7th ed.) Citation

Shepard, S. (2007). When the world was green ([1st electronic ed.].). Alexander Street Press.

Chicago Style (17th ed.) Citation

Shepard, Sam. When the World Was Green. [1st electronic ed.]. Alexandria, VA: Alexander Street Press, 2007.

MLA (9th ed.) Citation

Shepard, Sam. When the World Was Green. [1st electronic ed.]. Alexander Street Press, 2007.