Editions Stock, 2015, ISBN 978-2-234-07765-2, 276 p.
Stock, 2014, ISBN 978-2- 234-07765-2
Published by the Elmwood Institute, Berbeley, CA 94705. Edited by "Systems Education Research", Olympia, Wa 98502, first édition, winter 1990 104 pages.
Ed. de Minuit, Paris, 1989, 397 p. (Traduit de l'anglais par Abel Gershenfeldet Dan Sperber).