机读格式显示(MARC)

• 000 00446nam2 2200181 4500

• 001 0000235320

• 020 __ |a |c ￥75.00

• 041 0_ |a eng

• 093 __ |a TN919.6 |v 4

• 245 1_ |a PCM and Digital Transmission Systems. |c Owen, Frank F.E. |g |A PCMANDDI |F OWEN,FRANKFE

• 250 __ |a

• 260 __ |a New York |b McGraw-Hill |c 1982

• 300 __ |a 295c

• 440 0_ |a

• 700 _0 |a Owen, Frank F.E. |A OWEN,FRANKFE |4 著

• 851 _0 |a CN |b HIEL

• 905 __ |a HIEL |d TN919.6/O1

• 999 __ |b 1