TY  - BOOK
AU  - Piaget J
AU  - Piaget, J
AU  - Piaget J
TI  - Main Trends in Interdisciplinary Research
U1  - 300.7/PIA 
PY  - 1970///
CY  - London
PB  - Gerald Duckworth and Co.
KW  - Interdisciplinary
KW  - Research
KW  - Trends
ER  -