TY  - BOOK
AU  - Huberman,A.M.
TI  - Understanding change in education
T2  - Experimants and Innovations in Education
SN  - 92-3-101116-2
PY  - 1973///
CY  - Paris
PB  - Unesco: IBE
N1  - Бібліогр. : c. 95-99
ER  -