Keldysh, M V <br/><br/>
Science in the U S S R :  Academy of sciences of the U S S R / 
by M V Keldysh and et.all... 
 - Moscow :  Progress publishers,  1922. 
 - 364p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>509.47  / KEL.S