The crinoid fauna of the Knobstone formation

Chicago citation style
Springer, Frank. The crinoid fauna of the Knobstone formation. 1911. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_85773&repo=DPLA. (Accessed November 14, 2018.)
APA citation style
Springer, Frank, (1911) The crinoid fauna of the Knobstone formation. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_85773&repo=DPLA
MLA citation style
Springer, Frank. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_85773&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.