Kramer, A (1993). Human Taxonomic Diversity in the Pleistocene: Does Homo erectus Represent Multiple Hominid Species?. American Journal of Physical Anthropology. 91 (2): 161—171. doi:10.1002/ajpa.1330910203. PMID8317558.
Kramer, A (1993). Human Taxonomic Diversity in the Pleistocene: Does Homo erectus Represent Multiple Hominid Species?. American Journal of Physical Anthropology. 91 (2): 161—171. doi:10.1002/ajpa.1330910203. PMID8317558.