TY  - BOOK
AU  - Walling, S. A.
AU  - Hill, J. C.
TI  - Elementary marine navigation
SN  - 9781107419414 -pbk
AV  - VK559.W35 2014 021601
PY  - 2014///
CY  - United Kingdom
PB  - Cambridge University Press
KW  - Navigation
ER  -