Langdon-Davies, John, \d 1897- <br/><br/>
Man, the known and unknown / 
John Langdon-Davies. 
 - London :  Secker & Warburg,  1960. 
 - 226 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human beings.
<br/><br/><label>Dewey Class. No.: </label>128  / L259 Ma