Cita APA (7a ed.)

United States. Forest Service. Pacific Northwest Region. (2000). Columbia River Gorge National Scenic Area. The Service.

Cita Chicago Style (17a ed.)

United States. Forest Service. Pacific Northwest Region. Columbia River Gorge National Scenic Area. Hood River, OR: The Service, 2000.

Cita MLA (8a ed.)

United States. Forest Service. Pacific Northwest Region. Columbia River Gorge National Scenic Area. The Service, 2000.

Precaución: Estas citas no son 100% exactas.