APA (7th ed.) Citation

DeGuire, L. J., McDowell, N., & Warbach, O. (1999). Dirty air is hard to bear. Air Quality Division, Michigan Department of Environmental Quality.

Chicago Style (17th ed.) Citation

DeGuire, Laura J., Norris McDowell, and Ozz Warbach. Dirty Air Is Hard to Bear. [Lansing, Mich.]: Air Quality Division, Michigan Department of Environmental Quality, 1999.

MLA (9th ed.) Citation

DeGuire, Laura J., et al. Dirty Air Is Hard to Bear. Air Quality Division, Michigan Department of Environmental Quality, 1999.