=LDR 22 4500 =001 577 =082 04$a384.041 HAL =100 1\$aHall, Peter =245 10$aThe carrier wave: new information technology and the geography of innovation 1846 - 2003 =260 \\$aLondon :$bUnwin Hyman,$c1988 =650 \0$aBooks =700 1\$aPreston, Paschal =852 \\$bFreeman Library$h384.041 HAL$zNot located