000 nam a22 7a 4500
999 _c11736
_d11736
003 OSt
005 20201002152212.0
008 180203b xxu||||| |||| 00| 0 eng d
040 _cNARA
082 _a528.47
_bGEN
100 _919845
_aHydrographic Department- Ministry of Defence
245 _aGeneral Instructions for the Hydrographic Surveyors of the Royal Navy
250 _a1958 ed.
260 _bHydrographic Department- Ministry of Defence,
_c1958,
300 _a145p.
_c25cm.
942 _2udc
_cBK