Heisenberg, Werner,  1901-1976. <br/><br/>
The physical principles of the quantum theory. 
Translated into English by Carl Eckart and Frank C. Hoyt. 
 - [New York]  Dover Publications  [1950? c1930] 
 - 183 p.  illus.  21 cm. 
<br/><br/> "Lectures ... at the University of Chicago in the spring of 1929."--Pref. 
<br/><br/><label>ISBN: </label>0486601137 
<br/><br/><label>LCCN: </label>49011952  
<br/><br/><label>LC Class. No.: </label>QC174.1  / .H4 1950 
<br/><br/><label>Dewey Class. No.: </label>530.1