Lehrburger, C. (2015). Secrets of ancient America: Archaeoastronomy and the legacy of the Phoenicians, Celts, and other forgotten explorers. Bear & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLehrburger, Carl. Secrets of Ancient America: Archaeoastronomy and the Legacy of the Phoenicians, Celts, and Other Forgotten Explorers. Rochester, Vermont: Bear & Company, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLehrburger, Carl. Secrets of Ancient America: Archaeoastronomy and the Legacy of the Phoenicians, Celts, and Other Forgotten Explorers. Bear & Company, 2015.
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