TY  - GEN
AU  - Mukul Jana, Mrs.
AU  - Bijaykrishna Jana,  Dr.(jt. auth)
TI  - Designing instrument of cognition to develop preoperational thought in early childhood
SN  - 9788178804101
U1  - 372.21 
PY  - 2009///
CY  - New Delhi
PB  - Rajat publications
KW  - Cognitive psychology
KW  - Early childhood education
ER  -