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Tohutoro APA (7th ed.)
Austin G. S., Sloan R. E., & University of Minnesota. (1966). Geologic map of Minnesota.
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Tohutoru Kātū Chicago (17th ed.)
Austin G. S., Sloan R. E., me University of Minnesota. Geologic Map of Minnesota. 1966.
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Tohutoro MLA (9th ed.)
Austin G. S., et al. Geologic Map of Minnesota. 1966.
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