00549nam a2200193Ia 4500020001800000082001800018100002100036100002200057100002600079245004500105250001200150260003400162300001900196650002300215650004500238650002100283650002500304650002600329  a9780201092905  a621.382 SPR-T  aJohn D. Spragins  aJoseph L. Hammond  aKrzysztof Pawlikowski  aTelecommunications: Protocols and Design  a1st ed.  bAddison-Wesley Pub. Co.c1991  axix, 716p; 4cm  aTelecommunications  aTelecommunications: Protocols and Design  aJohn D. Spragins  a‎Joseph L. Hammond  aKrzysztof Pawlikowski