APA (7th ed.) Citation

United States. Environmental Protection Agency. Office of Transportation and Air Quality. (2014). Applicant guidance for technical/engineering hardship relief requests under 40 CFR 1039-625. United States Environmental Protection Agency, Office of Transportation and Air Quality.

Chicago Style (17th ed.) Citation

United States. Environmental Protection Agency. Office of Transportation and Air Quality. Applicant Guidance for Technical/engineering Hardship Relief Requests Under 40 CFR 1039-625. [Washington, D.C.]: United States Environmental Protection Agency, Office of Transportation and Air Quality, 2014.

MLA (9th ed.) Citation

United States. Environmental Protection Agency. Office of Transportation and Air Quality. Applicant Guidance for Technical/engineering Hardship Relief Requests Under 40 CFR 1039-625. United States Environmental Protection Agency, Office of Transportation and Air Quality, 2014.