Code of safe working practices for merchant seafarers : 2015 ed.- Amendment 6, October 2021.
- TSO (The Stationery Office) 2021
- various pages
978-0-11-554064-6
Merchant mariners -- Certification.
M 387.5071 C6692 2021
978-0-11-554064-6
Merchant mariners -- Certification.
M 387.5071 C6692 2021