TY  - BOOK
AU  - Frost, A
AU  - Frost, A
TI  - Practical navigation for officers of the watch l by A. Frost
SN  - 851747078
AV  - VK559.5 .F72 2004 
U1  - VK559.5 .F72 2004 
PY  - 2004///
CY  - Glasgow
PB  - Brown, Son & Ferguson
KW  - Navigation.Practical navigation
ER  -