TY  - BOOK
AU  - Christian, David
TI  - Maps of time : an introduction to big history
SN  - 9780520271449
U1  - 901 
PY  - 2011///
CY  - Berkeley
PB  - University of California Press
KW  - History
KW  - World history
KW  - Civilization--Philosophy
KW  - Human evolution
KW  - HS206
ER  -