00439nam a22001457a 4500 12409 12409 230519b 2019 ||||| |||| 00| 0 eng d 9789280117097 623.8245 IMO IMO - International Maritime Organization Model course 1.36 : Liquefied natural gas ( LNG) tanker cargo and ballast handling simulator 2019 London IMO 2019 vii, 86p. BK