APA (7th ed.) Citation

Ramsey, G. R. (1977). Postmarked Washington, Okanogan county. Okanogan County Historical Society.

Chicago Style (17th ed.) Citation

Ramsey, Guy Reed. Postmarked Washington, Okanogan County. [Omak, Wash.]: Okanogan County Historical Society, 1977.

MLA (8th ed.) Citation

Ramsey, Guy Reed. Postmarked Washington, Okanogan County. Okanogan County Historical Society, 1977.

Warning: These citations may not always be 100% accurate.