TY  - BOOK
ED  - United Nations.
TI  - The economics of new educational media
U1  - 371.3 19
PY  - 1980///
CY  - New York
PB  - United Nations
KW  - Education
N1  - "United Nations publication sales no. E.83.IX.5"--T.p. verso; "01200"--T.p. verso; Includes bibliographical references
ER  -