00310nam a2200109Ia 450000500170000008000180001710000240003524500640005926000420012330000160016558300190018120260716043034.0  a05.07.01 V681  aVignault, Walter L.  aWorldwide telecommunications guide for the business manager  bJohn Wiley and SonsaNew YorkUSc1987  axvi, 417 p.  c3/7/00kM2LMGR