APA (7th ed.) Citation

United States. Environmental Protection Agency & Energy Star (Program). (2004). Duct sealing. U.S. Environmental Protection Agency.

Chicago Style (17th ed.) Citation

United States. Environmental Protection Agency and Energy Star (Program). Duct Sealing. Washington, DC: U.S. Environmental Protection Agency, 2004.

MLA (9th ed.) Citation

United States. Environmental Protection Agency and Energy Star (Program). Duct Sealing. U.S. Environmental Protection Agency, 2004.