TY  - BOOK
AU  - Tetley, Laurie. 
TI  - Electronic Navigation Systems / 
SN  - 9780750651387
U1  - 623.8504  23
PY  - 2001///.
CY  - London : 
PB  - Routledge Taylor & Francis groups, 
KW  - Electronics in navigation.
KW  - Navigation Systems.
ER  -