Guelzo, A. C. (2024). Voices from Gettysburg: Letters, papers, and memoirs from the greatest battle of the civil war. Citadel Press, Kensington Publishing Corp..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGuelzo, Allen C. Voices from Gettysburg: Letters, Papers, and Memoirs from the Greatest Battle of the Civil War. New York, NY: Citadel Press, Kensington Publishing Corp., 2024.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGuelzo, Allen C. Voices from Gettysburg: Letters, Papers, and Memoirs from the Greatest Battle of the Civil War. Citadel Press, Kensington Publishing Corp., 2024.
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