A revision of the North American ichneumon-flies of the subfamily Opiinae

Chicago citation style
Gahan, A. B. A revision of the North American ichneumon-flies of the subfamily Opiinae. 1915. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_86018&repo=DPLA. (Accessed November 18, 2018.)
APA citation style
Gahan, A. B, (1915) A revision of the North American ichneumon-flies of the subfamily Opiinae. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_86018&repo=DPLA
MLA citation style
Gahan, A. B. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_86018&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.