TY - BOOK T1 - World directory of documentation resources and systems for the travel and tourism sector. T2 - [Publications] / World Tourism Organization LA - English PP - Madrid PB - WTO YR - 1991 UL - https://tuklas.up.edu.ph/Record/UP-99796217602252330 OP - 184 NO - Arbitrarily numbered. CN - G 155 A1 W664 no.75 KW - Tourism : Documentation : Directories. KW - Tourism : Data processing : Directories. ER -