00531nam a2200241Ia 4500003000400000005001700004006001900021007000300040008004100043024001000084037001200094040001800106041000800124082001200132100002000144245003600164250000600200260000900206300001200215650002600227650001600253700002000269OSt20220912152039.0a|||||r|||| 00| 0 ta220909b        |||||||| |||| 00| 0 eng d  a60893  cTextual  aCSLbengcCSL  aeng  aB0C, J6  aJeffreys Harold 0aMethods of mathematical physics  a3  c1956  ap.ccm.  a Mathematical physics  aMathematics  a Swirles Bertha