रिकॉर्ड उद्धरण

APA (7 वां संस्करण) प्रशस्ति पत्र
Leverett Frank. (1929). Map showing areas formerly covered by glacial lakes of Northern Minnesota, Northern Wisconsin, and Northern Peninsula of Michigan. U. S. Geological Survey.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Leverett Frank. Map Showing Areas Formerly Covered by Glacial Lakes of Northern Minnesota, Northern Wisconsin, and Northern Peninsula of Michigan. U. S. Geological Survey, 1929.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Leverett Frank. Map Showing Areas Formerly Covered by Glacial Lakes of Northern Minnesota, Northern Wisconsin, and Northern Peninsula of Michigan. U. S. Geological Survey, 1929.
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