00842     2200229   4500001002100000005001500021035002000036008004100056245018900097260003300286300003300319020001800352520003900370082001100409650001800420650001700438650001200455650001200467084001700479111010400496990001200600INLIS00000000002283420230325120436  a0010-1218004672230325                g          1 eng  1 aAir pollution reference measurement methods and systems: Proceedings of the International Workshop, Bilthoven, December 12-16, 1977 /cT. Schneider, H.W. de Koning, L.J. Brasser (eds.)  aAmsterdam :bElsevier,c1978  avi, 168 p. :bill. ;c25 cm.  a0-444-41764-8  aStudies in Environmental Science 2  a614.71 4aAIR POLLUTION 4aMEASUREMENTS 4aMETHODS 4aSYSTEMS  a614.71 INT a2 aINTERNATIONAL WORKSHOP ON AIR POLLUTION REFERENCE MEASUREMENT METHODS AND SYSTEMS (1977: BILTHOVEN)  a4747/84