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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Charles A. Libby & Son (Spokane, Wash.), Eastern Washington State Historical Society, Charles A. Libby, Charles A. Libby, و Larry Schoonover. Charles A. Libby & Son: Spokane Photographers. Spokane, Wash. (West 2316 First Avenue, Spokane 99204): Eastern Washington State Historical Society, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Charles A. Libby & Son (Spokane, Wash.), et al. Charles A. Libby & Son: Spokane Photographers. Eastern Washington State Historical Society, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.