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020 _a9789978310786
041 _aspa
082 _a386.3
100 _aTOBAR VEGA, HUGO
245 0 _aTHE WORLD SEABORNE TRADE AND TRASNPORT : FACTS & CHALLENGES
250 _a1A ED.
260 _aEcuador
_bESPOL-FIMCM
_c2011
260 _aGUAYAQUIL
_bESPOL- FIMCM
300 _a298
650 _aTRANSPORTE MARITIMO
650 _aTRANSPORTE MARITIMO
942 _c01
010 _a75603
999 _c229700
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