Charles A. Libby & Son (Spokane, Wash.), Eastern Washington State Historical Society, Libby, C. A., Libby, C. A., & Schoonover, L. (1991). Charles A. Libby & Son: Spokane photographers. Eastern Washington State Historical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCharles A. Libby & Son (Spokane, Wash.), Eastern Washington State Historical Society, Charles A. Libby, Charles A. Libby, और Larry Schoonover. Charles A. Libby & Son: Spokane Photographers. Spokane, Wash. (West 2316 First Avenue, Spokane 99204): Eastern Washington State Historical Society, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCharles A. Libby & Son (Spokane, Wash.), et al. Charles A. Libby & Son: Spokane Photographers. Eastern Washington State Historical Society, 1991.
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