01060cam a2200301 i 4500 3019 BD-RjUL 20211208233647.0 160829s1975 fr r i001 0 eng 9230012289 (BD-RjUL)3053 DLC DLC DLC eng engfre 607 23 UNW 1975 Unesco. 152939 World guide to technical information and documentation services = Guide mondial des centres de documentation et d'information techniques / Unesco 2d., rev. and enl. Paris : Unesco Press, 1975. 515 p. ; 21 cm. English or French. "COM.74/XXIV.II.2/AF." Includes indexes. Technology Information services Directories. 152918 Guide mondial des centres de documentation et d'information techniques. ddc REF 3019 3019 0 0 ddc 0 1 REF RUCL RUCL Reference 1982-08-28 Unesco 0 R 607 UNW 1975 2016-08-29 00:00:00 C-1 2021-12-08 REF