I.B.I. monograph
International Broadcast Institute
by Peter Passell and Leonard Ross
International Broadcast Institute c1972 I.B.I. monograph 3
所蔵館1館
by Abderrazak Berrada
International Broadcast Institute c1972 I.B.I. monograph 2
by John Scupham
International Broadcast Institute c1972 I.B.I. monograph 1