00418nam a22001337a 4500003000400000005001700004008004100021040001100062100006600073245009100139250000800230260003900238300000700277OSt20240416100953.0240416b        |||||||| |||| 00| 0 eng d  cMRSPTU  aSingh, Jatinderpal (ਜਤਿੰਦਰਪਾਲ ਸਿੰਘ)  aVigyan De Chamatkar (ਵਿਗਿਆਨ ਦੇ ਚਮਤਕਾਰ)bWonders of Science  a1st  aPunjabbTarkbharti Parkashanc2007  a96