text McGraw-Hill 1998 eng x, 143 hlm. : il 28 cm. Stewart C Bushong radiation pretection 616.075 75 616.075 75 Bus r 1 0070120137 INLIS000000000053854 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)