Bohr, Niels <br/><br/>
On the quantum theory of line-spectra / 
Niels Bohr 
 - New York  Dover Publications  2005 
 - 118 p-. 
<br/><br/><label>ISBN: </label>9780486442488 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quantum theory.<br/>Spectrum analysis.ﾠ
<br/><br/><label>Dewey Class. No.: </label>535.84 BOH-N