United States. Department of Health, Education, and Welfare, & ProQuest (Firm). (1969). The cost of clean air. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of Health, Education, and Welfare, and ProQuest (Firm). The Cost of Clean Air. Washington: [publisher not identified], 1969.
MLA (9th ed.) CitationUnited States. Department of Health, Education, and Welfare, and ProQuest (Firm). The Cost of Clean Air. [publisher not identified], 1969.
Warning: These citations may not always be 100% accurate.