Hazards of optical radiation : A guide to sources, uses safety text Adam Hilger 1988 eng viii, 121 hlm. : il 23 cm. A. F. McKinlay lighting 621.322 621.322 McK h 0852742657 INLIS000000000047538 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)