APA (7th ed.) Citation

Shepard, P., & Shepard, F. R. (1999). Encounters with nature: Essays. Island Press ; Shearwater Books.

Chicago Style (17th ed.) Citation

Shepard, Paul, and Florence R. Shepard. Encounters with Nature: Essays. Washington, D.C. : Covelo, Calif.: Island Press ; Shearwater Books, 1999.

MLA (9th ed.) Citation

Shepard, Paul, and Florence R. Shepard. Encounters with Nature: Essays. Island Press ; Shearwater Books, 1999.