APA (7th ed.) Citation

Hart, J. (2004). What are they saying about environmental theology? Paulist Press.

Chicago Style (17th ed.) Citation

Hart, John. What Are They Saying About Environmental Theology? New York [etc.]: Paulist Press, 2004.

MLA (9th ed.) Citation

Hart, John. What Are They Saying About Environmental Theology? Paulist Press, 2004.