TY - BOOK AU - Elahi,Ata AU - Elahi,Mehran TI - Data, network and internet communications technology SN - 1401872697 : U1 - 004.6 PY - 2006/// CY - Sydney PB - Thomson Delmar Learning KW - Computer networks KW - Textbooks KW - Data transmission systems N1 - Includes bibliographical references and index ER -