TY  - BOOK
AU  - Tignor,Robert L.
TI  - Worlds together, worlds apart: a history of the world from the beginnings of humankind to the present 
SN  - 9780393925470
PY  - 2008///
CY  - New York
PB  - W.W. Norton and Company
KW  - World history
N1  - Includes bibliographical references and index
ER  -