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Dyfyniad Arddull ChicagoDelagnes, Anne, Patrick Schmidt, Katja Douze, Sarah Wurz, Ludovic Bellot-Gurlet, Nicholas J. Conard, Klaus G. Nickel, Karen L. van Niekerk, and Christopher S. Henshilwood. "Early Evidence for the Extensive Heat Treatment of Silcrete in the Howiesons Poort At Klipdrift Shelter (Layer PBD, 65 Ka), South Africa." PLoS One 2016.
Dyfyniad MLADelagnes, Anne, et al. "Early Evidence for the Extensive Heat Treatment of Silcrete in the Howiesons Poort At Klipdrift Shelter (Layer PBD, 65 Ka), South Africa." PLoS One 2016.