TY - BOOK TI - Textbook for fundamental information technology engineers: no. 4 : network and database technologies AV - T 58.6 .T498 2006 PY - 2006/// CY - Tokyo, Japan PB - Information-Technology Promotion Agency, Japan KW - INFORMATION TECHNOLOGY -- STUDY AND TEACHING N1 - Part 1: Network technology -- Part 2: Database technology ER -