-
1
The contents of education : a worldwide view of their development from the present to the year 2000 /
Pubblicazione 1987“...Unesco,...”
Libro -
2
Solving educational problems : the theory and reality of innovation in developing countries /
Pubblicazione 1977“...Unesco,...”
Libro -
3
-
4
The contents of education : a worldwide view of their development from the present to the year 2000 /
Pubblicazione 1987“...Unesco,...”
Libro -
5
Solving educational problems : the theory and reality of innovation in developing countries /
Pubblicazione 1977“...Unesco,...”
Libro -
6