TY  - BOOK
AU  - Green, Donald Rose
AU  - 
TI  - Proceedings; Measurement and piaget
U1  - 159.92.7 
PY  - 1971///
CY  - New york
PB  - McGraw-Hill
KW  - Psycho analysis
KW  - Child psychology
KW  - Paedology
KW  - Paedopsychology
N1  -  CTB/McGraw-Hill Conference On Ordinal Scales of Cognitive Development
ER  -