Cita APA (7a ed.)

Sanborn Map Company. (1910). Insurance maps of Spokane, Washington. The Company.

Cita Chicago Style (17a ed.)

Sanborn Map Company. Insurance Maps of Spokane, Washington. [s.l.]: The Company, 1910.

Cita MLA (8a ed.)

Sanborn Map Company. Insurance Maps of Spokane, Washington. The Company, 1910.

Precaución: Estas citas no son 100% exactas.