Colton, Joel 1918-2011.
Twentieth century /
Joel Colton and the editors of Time-Life Books 
. - Revised edition 
. - Alexandria : Time-Life Books,  1978 
. - 208 p.  ill., map.  27 cm. 
 - (Great ages of man : a history of the world’s cultures )
<br/>К.: Бібліогр. : c. 174, Index