Five new species of Recent unstalked crinoids

Chicago citation style
Clark, Austin Hobart. Five new species of Recent unstalked crinoids. 1909. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_85620&repo=DPLA. (Accessed November 15, 2018.)
APA citation style
Clark, Austin Hobart, (1909) Five new species of Recent unstalked crinoids. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_85620&repo=DPLA
MLA citation style
Clark, Austin Hobart. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_85620&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.