Gabriele, M., & Perry, D. M. (2024). Oathbreakers: The war of brothers that shattered an empire and made Medieval Europe (First edition.). Harper, an imprint of HarperCollins Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGabriele, Matthew, और David M. Perry. Oathbreakers: The War of Brothers That Shattered an Empire and Made Medieval Europe. First edition. New York, NY: Harper, an imprint of HarperCollins Publishers, 2024.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGabriele, Matthew, और David M. Perry. Oathbreakers: The War of Brothers That Shattered an Empire and Made Medieval Europe. First edition. Harper, an imprint of HarperCollins Publishers, 2024.
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