Études ouvertes :
MacKenzie, Norman, 1921-2013
Études ouvertes : Systems d´instruction postsecondaire á distance/ Norman Mackenzie, Richmond Postgate, John Scupham. - Paris : UNESCO, 1977. - 448 p.
9232013266 9231013262 (softbound) 9231013327 (hardbound)
374 (100) =40 MAC
Études ouvertes : Systems d´instruction postsecondaire á distance/ Norman Mackenzie, Richmond Postgate, John Scupham. - Paris : UNESCO, 1977. - 448 p.
9232013266 9231013262 (softbound) 9231013327 (hardbound)
374 (100) =40 MAC