Descriptions of seven new species of red spiders

Chicago citation style
McGregor, E. A. Descriptions of seven new species of red spiders. 1917. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_86090&repo=DPLA. (Accessed November 18, 2018.)
APA citation style
McGregor, E. A, (1917) Descriptions of seven new species of red spiders. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_86090&repo=DPLA
MLA citation style
McGregor, E. A. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_86090&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.