L' arbre de la communication
By: conception et rédaction, Dominique Roger, Jane Albert-Hesse = The communication tree / devised and written by Dominique Roger, Jane Albert-Hesse.
Contributors: Albert-Hesse, Jane.; Unesco.
Publisher: Unesco
Published: 1984
Place of publication: Paris
Language: eng
Number of pages: 71
Subjects: Communication -- Pictorial works.
Other titles: Communication tree.
Notes: Bibliography: p. 71.
English, French, and Spanish.