TY  - BOOK
AU  - Ong, Chit Chung.
TI  - The landward defence of Singapore (1919-1938)
SN  - 9971641720
PY  - 1988///
CY  - National University of Singapore, Singapore
PB  - Centre for Advanced Studies
KW  - Fortification
KW  - Singapore
N1  - p. 47-50
ER  -