00321nam a2200121Ia 4500008004100000082001800041100002000059245001100079260003000090300000900120630001800129650005200147211109s9999||||xx |||||||||||||| ||und||  a546.22bRAD-V  aRadakrishnan, M 0aVellam  bD c BooksaKottayamc1975  a78p.  xGeneral Stack  aNatural SciencexInorganic ChemistryvGeneralia