EINSTEIN(Albert) <br/><br/>
"The collected papers of Albert Einstein, Vol 7: The Berlin years:writings, 1918-1921" 

 - New Jersey  Princeton University Press  2002 
 - Hbk.xlvii p. + 689 
<br/><br/><label>ISBN: </label>0691057176 
<br/><br/><label>Source: </label>8095