The tree of knowledge : the biological roots of human understanding /
Humberto R. Maturana & Francisco J. Varela ; translated by Robert Paolucci ; foreword by J.Z. Young.
- Rev. ed.
- Boston : New York : Shambhala ; Distributed in the U.S. by Random House, 1992.
- 269 p. : ill. (some col.) ; 24 cm.
Translation of: El arbol del conocimiento.
Includes bibliographical references (p. 256) and index.