Born-Digital or AnalogAnalogTranscriptAMERICAN TELEPHONE AND TELEGRAPH OTHER CARRIERS LET A. T.& T. OFF THE HOOK OVER MONDAY'S WIDESPREAD OUTAGE RMN JA 179 1990 P. 35 FAILING OF THE PHONE SYSTEM SHOWS THE VULNERABILITY OF TECHNOLOGY RMNISUS I NESS JA 21,p 1990 F . 6-S 0CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
AMERICAN TELEPHONE AND TELEGRAPH, [43900]. Denver Public Library Digital Collections, accessed 10/03/2026, https://digital.denverlibrary.org/nodes/view/1202463
