Global Round Table on PRTRs are being organised under the auspices of UNECE and OECD, in cooperation with UNITAR and UNEP. The round tables are aimed at taking stock of successes and challenges in ...
A black plastic tape attached along the top edge reads: MATLACK. The top of the base is marked: CONCISE (/) SCIENCE TABLES (/) AND CIRCULAR SLIDE RULE. The slide rule has a D scale along the outer rim ...