TY  - BOOK
AU  - Witherby Seamanship International
AU  - Witherby Seamanship International
TI  - Regulatory primer for 2nd and chief engineers :  covering current & new requlations to 1 September 2011/   Witherby Seamanship International.   
SN  - 9781856095174
AV  - VK541.W774 2011 
U1  - VK541.W774 2011 
PY  - 2011///
PB  - Livingston : Witherby Seamanship International
ER  -