Cita APA (7a ed.)

Howard, H. A. (1963). Northwest trail blazers. Caxton Printers.

Cita Chicago Style (17a ed.)

Howard, Helen Addison. Northwest Trail Blazers. Caldwell, Idaho: Caxton Printers, 1963.

Cita MLA (8a ed.)

Howard, Helen Addison. Northwest Trail Blazers. Caxton Printers, 1963.

Precaución: Estas citas no son 100% exactas.