TY  - BOOK
AU  - Great Britain
TI  - Admiralty manual of navigation. 
T2  - B.R.
SN  - 0114002975
U1  - R 623 ADM 
PY  - 1959///
CY  - London
PB  - H.M.S.O
KW  - Navigation
KW  - Handbooks, manuals, etc
N1  - Previous ed.: 1956
ER  -