An introduction to lifelong education /
Lengrand, Paul.
An introduction to lifelong education / by Paul Lengrand. - Paris : Unesco, 1970. - 99 p. ; 21 cm. - Unesco. Document. ED.70/D.56/A .
Continuing education.
An introduction to lifelong education / by Paul Lengrand. - Paris : Unesco, 1970. - 99 p. ; 21 cm. - Unesco. Document. ED.70/D.56/A .
Continuing education.
