Place Hold on A brief guide to sources of scientific and technical information.
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]]>Place Hold on World guide to technical information and documentation services.
]]>Paris : [New York : Unesco ; distributed by Unesco Publications Center, 1974 9231011855
Place Hold on Science and technology policies information exchange system (SPINES) :
]]>Place Hold on World guide to technical information and documentation services =
]]>Paris : Unesco Press, 1975 , English or French. | "COM.74/XXIV.II.2/AF." | Includes indexes. 9230012289
Place Hold on World guide to technical information and documentation services =
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