Spradlin, M. P. (2020). Close calls: How eleven US Presidents escaped from the brink of death. Bloomsbury Children's Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpradlin, Michael P. Close Calls: How Eleven US Presidents Escaped from the Brink of Death. New York: Bloomsbury Children's Books, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpradlin, Michael P. Close Calls: How Eleven US Presidents Escaped from the Brink of Death. Bloomsbury Children's Books, 2020.
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