TY - BOOK AU - Holder, Len A AU - Holder, Len A TI - Training and assessment on board : a guide for seafarers and managers on how to make best use of opportunities for practical training and assessment of competence on board ship / Len A. Holder. SN - 9781856094511 AV - VK531 .H7116 2011 U1 - VK531 .H7116 2011 PY - 2011/// PB - London : Witherby ER -