TY  - BOOK
AU  - Bronfenbrenner, Urie,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : experiments by nature and design 
SN  - 674224566
SN  - 2
PY  - 1979///46
CY  - Cambridge, Mass.
PB  - Harvard University Press
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Research
KW  - Child psychology;Human development
N1  - Includes index; Bibliography: p. 299-319; 5
ER  -