STCW Circular No. 2017-07
SUBJECT : Mandatory Minimum Requirements for Certification of Electro-Technical Ratings ………………………………………………………………………………………
STCW-Circular-2017-07SUBJECT : Mandatory Minimum Requirements for Certification of Electro-Technical Ratings ………………………………………………………………………………………
STCW-Circular-2017-07