Bryan, T. S., & Pratt, D. (2008). The geysers of Yellowstone (Fourth edition.). University Press of Colorado.
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Chicago-čujuhus (17. p.)
Bryan, T. Scott, juo Daniel Pratt. The Geysers of Yellowstone. Fourth edition. Boulder, Colorado: University Press of Colorado, 2008.
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MLA-čujuhus (9. p.)
Bryan, T. Scott, juo Daniel Pratt. The Geysers of Yellowstone. Fourth edition. University Press of Colorado, 2008.
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