TY - BOOK ED - International Atomic Energy Agency TI - Monitoring for radioactive material in international mail transported by public postal operators: Reference manual SN - 9201004060 U1 - 363.1799 MON 2006 PY - 2006/// CY - Vienna PB - IAEA KW - Postal service KW - Safety measures KW - Radiation KW - Measurement KW - Radioactive substances KW - Security measures N1 - Technical guidance, reference manual; Includes bibliographical references.(33-34) ER -