TY  - GEN
AU  - Piaget, Jean
TI  - Main trends in interdisciplinary research
U1  - 007/ 
PY  - 1970///,
CY  - London
PB  - Allen & Unwin
KW  - Research design
KW  - Data
KW  - Data collection
KW  - Interviews
KW  - Data retrieval
KW  - Research
ER  -