00000nas 2200000zi 4500 9.882842 CaOODSP 20221107170414 m o d f cr ||||||||||| 191212d19731974onc | m o f0###a0eng|d CaOODSP eng rda CaOODSP n-cn--- Co24-3/9E-PDF DLDCNS report. Domestic long distance communications network study report Ottawa : Communications Research Centre, 1973-1974? text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Communication and technology. Canada. Department of Communications, issuing body. Communications Research Centre (Canada), issuing body.