Fock, V. <br/><br/>
The theory of space time and gravitation 
<label>/ by </label> Fock, V. 
<label>;</label> Kemmer, N. 
 - London  Pergamon Press  1959 
 - xviii, 411p.  25 cm. 
<br/><br/><label>Dewey Class. No.: </label>530.11  / FOC