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APA Citation
Beach, T., Luzzadder-Beach, S., Cook, D., Dunning, N., Kennett, D. J., Krause, S., Terry, R., Trein, D., & Valdez, F. (2015). ancient Maya impacts on the Earth's surface: An Early Anthropocene analog?. Quaternary science reviews, 124, 1–30. http://access.bl.uk/ark:/81055/vdc_100042260369.0x00002e