Cita APA (7a ed.)

Maturana, H. R., Varela, F. J., & Young, J. (1992). The tree of knowledge: The biological roots of human understanding (Rev. ed.). Shambhala ; Distributed in the U.S. by Random House.

Cita Chicago Style (17a ed.)

Maturana, Humberto R., Francisco J. Varela, y J.Z Young. The Tree of Knowledge: The Biological Roots of Human Understanding. Rev. ed. Boston : New York: Shambhala ; Distributed in the U.S. by Random House, 1992.

Cita MLA (9a ed.)

Maturana, Humberto R., et al. The Tree of Knowledge: The Biological Roots of Human Understanding. Rev. ed. Shambhala ; Distributed in the U.S. by Random House, 1992.