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APA Citation
Li, G., Jin, M., Chen, X., Wen, L., Zhang, J., Madsen, D., Zhao, H., Wang, X., Fan, T., Duan, Y., Liu, X., Wu, D., Li, F., & Chen, F. (n.d.). environmental changes in the Ulan Buh Desert, southern Inner Mongolia, China since the middle Pleistocene based on sedimentology, chronology and proxy indexes. World trade review, 14, 69–80. http://access.bl.uk/ark:/81055/vdc_100029218472.0x00004d