Thompson, R.S.; Anderson, K.H. 2000. Biomes of western North America at 18,000, 6000 and 0 14C yr BP reconstructed from pollen and packrat midden data. Journal of Biogeography. 27(3): 555-584.

Thompson, R.S.; Anderson, K.H. 2000. Biomes of western North America at 18,000, 6000 and 0 14C yr BP reconstructed from pollen and packrat midden data. Journal of Biogeography. 27(3): 555-584.

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