TY  - GEN
AU  - Appleyard, S F
TI  - Marine Electronic Navigation
SN  - 0710005334
U1  - 623.893 
PY  - 1980///
CY  - London
PB  - Routledge & Kegan Paul
KW  - Marine Navigation
KW  - Electronic Navigation
KW  - Navigation
ER  -