TY  - BOOK
AU  - Chaudhari,Sudhir Singh
TI  - Chartwork : : basic concepts and miscellaneous  calculations / 
U1  - 623.8884 23
PY  - 1997///.
CY  - Mumbai : 
PB  - Umavinnie Publications, 
KW  - History of Sextant.
KW  - Oceanography.
KW  - Theory of Tide.
ER  -