TY  - BOOK
AU  - Pinker,Steven
TI  - The better angels of our nature: why violence has declined 
SN  - 9780670022953 (hardback)
AV  - HM1116 .P57 2011
U1  - 303.609 22
PY  - 2011///
CY  - New York
PB  - Viking
KW  - Violence
KW  - Psychological aspects
KW  - Social aspects
KW  - History
KW  - Nonviolence
N1  - Includes bibliographical references and index
ER  -