TY  - BOOK
AU  - Duiker, William J.
AU  - 
AU  - Spielvogel, Jackson J.
TI  - History of the world
SN  - 978-971-98-0781-0
U1  - 909 D883 2017 
CY  - [Singapore]
PB  - Cengage Learning.
KW  - World history
ER  -