text Delmar Delmar 1991 N xiv, 242 hlm. 24 cm ELEKTRONIK 621.381 621.381 Bea e 0827346433 INLIS000000000003008 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)