00526nam a22001817a 4500 117018 117017 OSt 20260706113010.0 201125b ||||| |||| 00| 0 eng d 9789382127833 543.42:547 AGA Agarwala,U C 731 Infrared specttroscopy of molecules by Agarwala U C and H L Nigam etal... Newdelhi Ane book 2014 288 Classes Selection rule Sampling of materials Agarwala,Sudha 732 ddc BK