TY  - BOOK
AU  - Schon, Donald A.
TI  - Beyond the stable state
SN  - 0-393-00685-9
U1  - 301.24 
PY  - 1973///, 1971]
CY  - New York, N. Y.
PB  - Norton, Random House
KW  - Cambio Social
KW  - Historia -
ER  -