00723cam a22002531 45000010008000000030008000080050017000160080041000330100017000740150015000910350018001060400038001240420012001620500017001740820018001911000018002092450065002272600033002923000032003255040051003576500022004086500021004307000018004518939120BD-DhUL20150118110526.0711115s1966 nyua b 000 0 eng  a 66021376  aGB66-17340 a(OCoLC)171639 aDLCcOAUdOCoLCdUkdDLCdBD-DhUL apremarc00aTK7870b.R77 a621.3173bRUC1 aRubin, Murry.10aCommunication switching systems /cMurry Rubin, C.E. Haller. aNew York :bReinhold,c1966. av, 394 p. :bill. ;c24 cm. aIncludes bibliographical references and index. 0aSwitching theory. 0aSystem analysis.1 aHaller, C. E.