00342nam a22001337a 450000500170000000800410001704100080005808200140006610000240008024500540010426000300015852100080018865000120019620260806203447.0260806b        |||||||| |||| 00| 0 eng d  aeng  a536 RDP-4  aD. P. Ray-Chaudhuri  aHeat : For Degree Students /cD. P. Ray-Chaudhuri  aKolkata :bChayan,c1963.  aAll  aPhysics