Chatwal, Gurdeep . Spectroscopy : atomic and molecular / by Gurdeep Chatwal and Sham Anand; edited by M. Arora and S. Puri. - 3rd rev. ed / . - Bombay : Himalaya Publishing House , 1989. - viii,414p. : ills.,figs.,tables ; 21cm . NULL ISBN: 8170400309 Rs.125.00 Subjects--Index Terms: SPECTROSCOPY Dewey Class. No.: 543.0858 / CHA/S