Cita APA (7th ed.)

Cummings, C. (1991). Eco-spirituality: Toward a reverent life. Paulist Press.

Cita Chicago (17th ed.)

Cummings, Charles. Eco-spirituality: Toward a Reverent Life. Mahwah, New Jersey: Paulist Press, 1991.

Cita MLA (9th ed.)

Cummings, Charles. Eco-spirituality: Toward a Reverent Life. Paulist Press, 1991.