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U.S. Geological Survey professional paper volume 1366-E-J
U.S. Geological Survey professional paper volume 1366-A-D
U.S. Geological Survey professional paper volume 1366-A-D
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Geological Survey professional paper volume 440-B-1
U.S. Geological Survey professional paper volume 440-KK
U.S. Geological Survey professional paper volume 440-KK