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		No cover image available Atomic energy levels as derived from the analyses of optical spectra, by Charlotte E. Moore. by Moore, Charlotte Emma, 1898- Series: United States. National standard reference data series ; NSRDS-NBS 35. \| United States. National Bureau of Standards NSRDS-NBS 35 ; [Washington] U.S. National Bureau of Standards; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1971- Availability: Items available for loan: NCAR Library (6)Call number: QC100 .U573 NO. 35 V. 3, ... Place hold
		No cover image available Atomic energy levels--the rare-earth elements : the spectra of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium / W. C. Martin, Romuald Zalubas, and Lucy Hagan. by Martin, William Clyde, 1929- Zalubas, Romuald [joint author.] Hagan, Lucy [joint author.] Series: United States. National standard reference data series ; NSRDS-NBS 60. \| Nat. stand. ref. data ser. ; NSRDS-NBS 60 ; [Washington] : U.S. Dept. of Commerce, National Bureau of Standards : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978 Availability: Items available for loan: NCAR Library (1)Call number: QC100 .U573 NO. 60. Place hold

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