Spearheads

Chicago citation style
Spearheads. 1881-Aug-24. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhanthropology_8303518&repo=DPLA. (Accessed December 14, 2018.)
APA citation style
(1881-Aug-24) Spearheads. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhanthropology_8303518&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhanthropology_8303518&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.