TY  - BOOK
AU  - Ong Pin Sam
TI  - Secondary School Geography 1
SN  - 9971-63-412-0
U1  - 910 
PY  - 1983///
CY  - Singapore
PB  - Pan Pacific book Distributors
N2  - Core map and spatial skills development: The curriculum emphasizes map reading, scale understanding, contour interpretation, direction finding, and representation of geographic data via graphs, tables, and diagrams
ER  -