TY  - BOOK
AU  - Van Sommers,Peter
TI  - Drawing and cognition: descriptive and experimental studies of graphic production processes 
SN  - 0521250951 :
U1  - 153 
PY  - 1984///
CY  - Cambridge
PB  - The University Press
KW  - Drawing, Psychology of
KW  - Drawing ability
KW  - Drawing ability in children
N1  - Includes bibliographical references and index
ER  -