TY  - BOOK
AU  - Duiker, William J.
AU  - Spielvogel, Jackson J.
TI  - The essential world history
SN  - 9781133606581
U1  -  909 
PY  - 2014///
CY  - Boston,USA
PB  - Wadsworth Cengage learning
KW  - World history
ER  -