00277nam a2200109Ia 4500008004100000082001500041100001500056245004400071250000900115260003600124300000700160190710s9999    xx            000 0 und d  a531.12 G46  aGoyal, J K 0aStatics : with attraction and potential  a12th  aMeerutbKrishna Prakashanc2002  a60