TY  - BOOK
AU  - Pinker, Steven 
TI  - Better angels of our nature: the decline of violence in history and its causes
SN  - 9781846140945
U1  - 303.609 P6557b 
PY  - 2011///
CY  - London
PB  - Penguin Books
KW  - Violence
KW  - Psychological aspects
KW  - Social aspects
ER  -