机读格式显示(MARC)
- 000 00549nam2 2200181 4500
- 020 __ |a 0-201-52501-1 |c ¥21.80
- 245 1_ |a Integrated Services Digital Networks : Architectures, Protocols,Standards. |c Helgert, Hermann J. |g |A INTEGRAT,PROTOCOL,STANDARD |F HELGERT,HERMANNJ
- 260 __ |a Reading |b Addison-Wesley Pub. Co. |c 1991
- 700 _0 |a Helgert, Hermann J. |A HELGERT,HERMANNJ |4 著
- 905 __ |a HIEL |d TN913.24/H1