TY  - BOOK
AU  - Lockard,Craig A.
TI  - Societies, networks and transitions: a global history 
SN  - 9780618386116
AV  - D21  .L62 2008 f
PY  - 2008///
CY  - Boston, MA
PB  - Houghton Mifflin
KW  - World history
KW  - Civilization
ER  -