Ruark, Arthur Edward,  1899- <br/><br/>
Atoms, molecules and quanta / 
Arthur Edward Ruark and Harold Clayton Urey. 
 - New York ;  London :  McGraw-Hill book company, inc.,  c1930. 
 - xvii, 790 p. ;  ill. ;  24 cm. 
 - International series in pure and applied physics. .
 - International series in pure and applied physics. .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quantum theory <br/>Spectrum analysis
<br/><br/><label>Dewey Class. No.: </label>530.12  / RUA 1930