Frederick, R., Curtis, A., & Crisp, J. (1983). Asahel Curtis: Photographs of the great Northwest. Washington State Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrederick, Richard, Asahel Curtis, और Jeanne Crisp. Asahel Curtis: Photographs of the Great Northwest. Tacoma: Washington State Historical Society, 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFrederick, Richard, et al. Asahel Curtis: Photographs of the Great Northwest. Washington State Historical Society, 1983.
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