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040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn---
0861 |aCo22-540/1989E-PDF
24500|aPreliminary study of economics, markets, and potential demand for ISDN services / |cprepared by Communication Sciences Research Corporation.
264 1|aOttawa : |bDepartment of Communications, |cJuly 1989.
300 |a1 online resource (1 volume (various pagings)) : |bcharts
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
500 |aDigitized edition from print [produced by Innovation, Science and Economic Development Canada].
500 |a"A report prepared for Department of Communications."
504 |aIncludes bibliographical reference.
650 0|aIntegrated services digital networks.
650 6|aRéseaux numériques à intégration de services.
7101 |aCanada. |bDepartment of Communications, |eissuing body.
7101 |aCommunication Sciences Research Corporation, |econsultant.
85640|qPDF|s1.58 MB|uhttps://publications.gc.ca/collections/collection_2024/isde-ised/co22/Co22-540-1989-eng.pdf