Lump Of Obsidian

Chicago citation style
Lump Of Obsidian. 1935-Aug-23. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhanthropology_8168776&repo=DPLA. (Accessed November 17, 2018.)
APA citation style
(1935-Aug-23) Lump Of Obsidian. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhanthropology_8168776&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhanthropology_8168776&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.