Gupta, S. L. Elements of spectroscopy atomic spectra, x-ray spectra, molecular binding and molecular spectra S. L. Gupta, V. Kumar and R. C. Sharma - 4th ed. - Meerut Pragati prakashan 1980 - 583p.ill Includes index ISBN: 32.40 Subjects--Topical Terms: Physics Dewey Class. No.: 535.84 / GU438