00509nam a22001817a 4500 116758 116757 OSt 20260706112946.0 201105b ||||| |||| 00| 0 eng d 9788122440638 543.42:547 KAL Kalsi,P S 297 Spectroscopy of organic compounds by Kalsi P S 7ed. Newdelhi New age 2016 569p. NMR Spectroscopy Mass spectrometry Ultraviolet and visible spectroscopy ddc BK