Perknaster densus Sladen, 1889

Chicago citation style
Perknaster densus Sladen, 1889. 29 Mar 1982. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhinvertebratezoology_369834&repo=DPLA. (Accessed November 14, 2018.)
APA citation style
(29 Mar 1982) Perknaster densus Sladen, 1889. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhinvertebratezoology_369834&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhinvertebratezoology_369834&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.