Environmental challenges, pollution control
Subtitle: the 22nd annual conference of the pollution control association of Ontario, Regal Constellation Hotel, Toronto, April 4-6, 1993
Series: Boojum Research reports -- R0030.
Publisher: The Association
Published: 1993
Place of publication: North York, Ont
Language: eng
Subjects: Pollution -- Environmental aspects -- Congresses.; Environmental protection -- Ontario -- Congresses.; Sewage -- Purification -- Congresses.
Genres: Congresses.
Other titles: Spine title: PCAO Conference 1993
Notes: Copy donated by M. Kalin, Boojum Research

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