Cita APA (7a ed.)

Le Roy, B. (1968). Northwest forts and trading posts. Washington State Historical Society.

Cita Chicago Style (17a ed.)

Le Roy, Bruce. Northwest Forts and Trading Posts. Tacoma: Washington State Historical Society, 1968.

Cita MLA (8a ed.)

Le Roy, Bruce. Northwest Forts and Trading Posts. Washington State Historical Society, 1968.

Precaución: Estas citas no son 100% exactas.