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Problems of air pollution in the District of Columbia : joint hearings before the Subcommittee on Business and Commerce and Subcommittee on Public Health, Education, Welfare, and Safety of the Committee on the District of Columbia, United States Senate, Ninetieth Congress, first session, March 8, 9, 13. 14, 15, and 16, 1967, and July 20 and August 29, 1967.

Format:
Book
Language:
English
View in NAL's Catalog:
CAT31384510