Helodrilus venetus hortensis Michaelsen

Chicago citation style
Helodrilus venetus hortensis Michaelsen. 18 Mar 1922. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhinvertebratezoology_718594&repo=DPLA. (Accessed November 14, 2018.)
APA citation style
(18 Mar 1922) Helodrilus venetus hortensis Michaelsen. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhinvertebratezoology_718594&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhinvertebratezoology_718594&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.