27194
Lehnisch, Jean-Pierre
L'Enseignement a distance
Paris
Presses Universitaires de France
1981
127p
Bibliography: p. 127
Jean-Pierre Lehnisch
5th edition
Educational broadcasting - France
Countinuing education - France
LB
1044
.
8
.
L44
1981
AU
TI
ED.نوجی
