Vondra, C. F. (1981). Hominid sites: Their geologic settings. Westview Pr. for The American Association for the Advancement of Science.
Chicago-viite (17. p.)Vondra, Carl F. Hominid Sites: Their Geologic Settings. Boulder, Colo.: Westview Pr. for The American Association for the Advancement of Science, 1981.
MLA-viite (9. p.)Vondra, Carl F. Hominid Sites: Their Geologic Settings. Westview Pr. for The American Association for the Advancement of Science, 1981.
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