Cita APA (7a ed.)

Doerper, J., & Vaughn, G. (1997). Pacific Northwest. Compass American Guides.

Cita Chicago Style (17a ed.)

Doerper, John, y Greg Vaughn. Pacific Northwest. Oakland, CA: Compass American Guides, 1997.

Cita MLA (8a ed.)

Doerper, John, y Greg Vaughn. Pacific Northwest. Compass American Guides, 1997.

Precaución: Estas citas no son 100% exactas.