=LDR 22 4500 =001 5198 =082 04$a1982 O'H =100 1\$aO'Hare, Liam =245 10$aThe spatial diffusion of radio and television in Ireland =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c1982 =650 \0$aDissertations =852 \\$bStaff Coffee Room$h1982 O'H