00366nam a22001217a 4500008004100000040005500041080001800096100002200114245002600136260004400162300001700206650002100223230328b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aD 681.324bN8  aSportrack, Mark A  aNetworking essentials  aIndianapolis: bSAMS Publishing, c1998  axxiii, 575p.  aComputer network