World Clean Air Congress (8th: 11-15 Sep 1989: The Hague) (Corporate Name)

Number of records used in: 1

Preferred form: World Clean Air Congress (8th: 11-15 Sep 1989: The Hague)

Machine generated authority record.

Work cat.: (): World Clean Air Congress (8th: 11-15 Sep 1989: The Hague), Man and his eco system:, 1989