Valérien, J. (1984). The educational administrator and instructional materials. Unesco.
Successfully copied to clipboard
Copying to clipboard failed
Dyfyniad Arddull Chicago
Valérien, Jean. The Educational Administrator and Instructional Materials. Paris: Unesco, 1984.
Successfully copied to clipboard
Copying to clipboard failed
Dyfyniad MLA
Valérien, Jean. The Educational Administrator and Instructional Materials. Unesco, 1984.
Successfully copied to clipboard
Copying to clipboard failed
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.