00318nam a2200109   4500020001800000082002300018084002500041100002200066245006200088260004700150300001100197  a9789395449441  a658.562Log   DEV/E  2Colon Classification  aDev, Bal Krishan   aEffective shipping and port management /cBal Krishan Dev  a New Delhi :b Pinakin Publishing, c2023.  a293p.: