TY  - BOOK
AU  -  Rogen,Dominique
AU  -  Albert-Hesse, Jane
TI  -  The communication tree = Larbre de la communication/ 
SN  -  9230021830
PY  - 1984///
CY  -  Paris : 
PB  -  Unesco, 
KW  -  Communication
N1  -  Includes bibliographical references
ER  -