TY  - BOOK
AU  - Weissenbacher, Manfred 
TI  - Sources of power: how energy forges human history; Vol.1
SN  - 9780313356285
U1  - 333.79  
PY  - 2009///
CY  - Santa Barbara
PB  -  Abcoclio 
KW  - Agriculture and energy
KW  - Civilization
KW  - Energy consumption
ER  -