TY  - BOOK
AU  - Zaide, Gregorio F. 
TI  - The World conceptual chronological approach / 
SN  - 9710805320
AV  - D 21 Z343 1985 F  
PY  - 1985///.
CY  - Philippines : 
PB  - National Book Store, 
KW  - History--World
N1  - Includes index.
ER  -