Ayers, W. and Dohrn, B. (2000). Resisting zero tolerance. Rethinking Schools 14 (3).
Barrows, A. and Macy, J. (eds.) (2005). Rilke's Book of Hours: Love Poems to God. New York: Riverhead Books.
Berry, T. (1999). The great work: Our way into the future. New York: Harmony/Bell Tower.
Boydston, J. (ed.) (2008). The Middle Works of John Dewey, Volume 9, 1899‐1924, Democracy and Education. Carbondale, IL: Southern Illinois University Press.
Cohen, M.J. (2003). The Web of Life Imperative: Regenerative Ecopsychology Technology That Help People Think in Balance with Natural Systems. British Columbia: Trafford.
de Chardin, P.T. (1965). The Appearance of Man. New York: Harper & Row.
Edwards, C. (1989). Van Gogh and God: A Creative Spiritual Quest. Chicago: Loyola University Press.
Elk, B. and Neihardt, J.G. (2014). Black Elk Speaks. Lincoln, NE: Bison Books.