na INLIS000000000022834 20230325120436 0010-1218004672 230325 g 1 eng Air pollution reference measurement methods and systems: Proceedings of the International Workshop, Bilthoven, December 12-16, 1977 / T. Schneider, H.W. de Koning, L.J. Brasser (eds.) Amsterdam : Elsevier, 1978 vi, 168 p. : ill. ; 25 cm. 0-444-41764-8 Studies in Environmental Science 2 614.71 AIR POLLUTION MEASUREMENTS METHODS SYSTEMS 614.71 INT a INTERNATIONAL WORKSHOP ON AIR POLLUTION REFERENCE MEASUREMENT METHODS AND SYSTEMS (1977: BILTHOVEN) 4747/84