Cita APA (7a ed.)

Ryan, J. C. (1994). State of the Northwest. Northwest Environment Watch.

Cita Chicago Style (17a ed.)

Ryan, John C. State of the Northwest. Seattle, Wash.: Northwest Environment Watch, 1994.

Cita MLA (8a ed.)

Ryan, John C. State of the Northwest. Northwest Environment Watch, 1994.

Precaución: Estas citas no son 100% exactas.