Cita APA (7a ed.)

Washington Trails Association. (1989). 25 centennial trails. Washington Trails Association.

Cita Chicago Style (17a ed.)

Washington Trails Association. 25 Centennial Trails. Seattle, WA: Washington Trails Association, 1989.

Cita MLA (8a ed.)

Washington Trails Association. 25 Centennial Trails. Washington Trails Association, 1989.

Precaución: Estas citas no son 100% exactas.