Cita APA (7a ed.)

United States. Environmental Protection Agency. Region X. Pacific Northwest Region environmental quality profile. The Region.

Cita Chicago Style (17a ed.)

United States. Environmental Protection Agency. Region X. Pacific Northwest Region Environmental Quality Profile. Seattle, WA: The Region.

Cita MLA (8a ed.)

United States. Environmental Protection Agency. Region X. Pacific Northwest Region Environmental Quality Profile. The Region.

Precaución: Estas citas no son 100% exactas.