00456nam a22001577a 4500 230329b |||||||| |||| 00| 0 eng d 007135185X National Science Library National Science Library D 681.324 N9 Brown, Steven 5663 Implementing virtual private networks New York: McGraw-Hill, 1999 xxi, 594p. Wide area networks udc BK 16219 16219 0 0 udc 0 D_681324_N9 0 24053 NSL NSL GF/Rk-4/C-13/R-4 2000-11-07 0 D 681.324 N9 179239 2023-03-29 00:00:00 2000-11-07 BK