TY  - BOOK
AU  - Duiker,William J.
AU  - Spielvogel,Jackson J.
TI  - The essential world history
SN  - 9780495902928 (combined volume)
AV  - D20 DUI 2011
U1  - 909 23
PY  - 2011///
CY  - Boston, MA : 
PB  - Wadsworth, Cengage Learning
KW  - World history
N1  - Includes bibliographical references and index
ER  -