Cita APA (7a ed.)

Grof, S., & Valier, M. L. (1988). Human survival and consciousness evolution. State University of New York Press.

Cita Chicago Style (17a ed.)

Grof, Stanislav, y Marjorie Livingston Valier. Human Survival and Consciousness Evolution. Albany: State University of New York Press, 1988.

Cita MLA (8a ed.)

Grof, Stanislav, y Marjorie Livingston Valier. Human Survival and Consciousness Evolution. State University of New York Press, 1988.