Revised draft ECE Standard Statistical Classification of Ambient Air Quality : paper / by the Secretariat.
1989
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Details
Symbol[E/ECE/]CES/AC.64/4
TitleRevised draft ECE Standard Statistical Classification of Ambient Air Quality : paper / by the Secretariat.
AuthorsUN. ECE. Secretariat
DateGeneva : UN, 27 June 1989.
Description
10 p.