00281nam a2200109Ia 4500008004000000082001500040100002300055245002500078260003500103300000700138650002600145210210b2000   xxu||||| |||| 00| 0 eng d  a502.8 RAOB  aRAO (P K Prakash).  aBook of experiments.  aHariharbAsha publishersc2000  a96  aScience experiments