TY  - BOOK
AU  - Lloyd, Christopher
TI  - What on earth happened?
SN  - 9781408802168
SN  - 200801534
U1  - 900 LLO 
PY  - 2008///
CY  - London
PB  - Bloomsbury
KW  - Civilization - History
KW  - Earth - History
KW  - Earth sciences - History
N1  - Includes bibliographical references (p. 391-399) and index
ER  -