APA (7th ed.) Citation

United States. General Accounting Office. (2002). Diffuse security threats: USPS air filtration systems need more testing and cost benefit analysis before implementation. United States General Accounting Office.

Chicago Style (17th ed.) Citation

United States. General Accounting Office. Diffuse Security Threats: USPS Air Filtration Systems Need More Testing and Cost Benefit Analysis Before Implementation. Washington, D.C.: United States General Accounting Office, 2002.

MLA (9th ed.) Citation

United States. General Accounting Office. Diffuse Security Threats: USPS Air Filtration Systems Need More Testing and Cost Benefit Analysis Before Implementation. United States General Accounting Office, 2002.