Martin, W. C. <br/><br/>
Atomic energy levels - the rare-earth elements 
W. C. Martin                                                 
 - Wasington  U. S. Department of Commerce  1978 
 - vii, 411p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atomic energy levels<br/>NASA thesaurus<br/>Tables<br/>Tables - atomic energy levels
<br/><br/><label>Universal Decimal Class. No.: </label>083:53  / NBS-60