00350nam 2204089 45000010005000000030023000050050009000280080041000370820008000780720025000860200018001111000016001292600017001452500007001622450025001694089StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a515 aMathematical physics a0-7069-1551-8 aB. D. Gupta bVIKAS c1978 a11 aMathematical physics