TY  - BOOK
TI  - Secret hydrographic surveys in the Spratly Island
SN  - 1901919080
PY  - 1999///
CY  - London
PB  - ASEAN Academic Press
KW  - Hydrographic surveying
KW  - Spratly Islands
KW  - Nautical charts
KW  - Maps
ER  -