Tremayne, P. (2013). The seventh trumpet: A mystery of Ancient Ireland (First U.S. Edition.). Minotaur Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTremayne, Peter. The Seventh Trumpet: A Mystery of Ancient Ireland. First U.S. Edition. New York: Minotaur Books, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTremayne, Peter. The Seventh Trumpet: A Mystery of Ancient Ireland. First U.S. Edition. Minotaur Books, 2013.
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