TY  - BOOK
AU  - Appleyard,S.F.
TI  - Marine electronic navigation
SN  - 0710005334 :
AV  - VK560 .A66
U1  - 623.893 19
PY  - 1980///
CY  - London, Boston
PB  - Routledge & Kegan Paul
KW  - Electronics in navigation
N1  - Includes index
ER  -