Fairfield R. (1971). Humanistic frontiers in American education. Englewood Cliffs, NJ: Prentice-Hall.

Ferguson M. (1973). The brain revolution. New York: Taplinger.

Ferguson M. (1980). The aquarian conspiracy. Los Angeles: Tarcher.

Gardner H. (1983). Frames of mind: The theory of multiple intelligences. New York: Basic Books.

Green E., & Green A. (1977). Beyond biofeedback. New York: Delacorte.

Guest W. (1985). Societal changes: Implications for education. Unpublished report to Superintendent of Schools, Rio Linda Unified School District, Rio Linda, CA.

Hendricks G., & Fadiman J. (1976). Transpersonal education: A curriculum for feeling and being. Englewood Cliffs, NJ: Prentice-Hall.

Hendricks G., & Willis R. (1975). The centering book. Englewood Cliffs, NJ: Prentice-Hall.

Holt J. (1970). Freedom and beyond. New York: Dutton.

Kohl H. (1969). The open classroom. New York: New York Review Books.