Ruark, Arthur Edward,  1899- <br/><br/>
Atoms, molecules and quanta / 
by Arthur Edward Ruark and Harold Clayton Urey 
 - London :  McGraw-Hill Book,  1930 
 - xvii, 755 p. :  ill. ;  24 cm. 
 - International series in physics .
<br/><br/> Library has 2 cops. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quantum theory<br/>Spectrum analysis<br/>Atoms<br/>Molecules