Cambrian Geology and Paleontology II: No.5--Middle Cambrian Annelids

Chicago citation style
Walcott, Charles D. Cambrian Geology and Paleontology II: No.5--Middle Cambrian Annelids. 1911. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_145142&repo=DPLA. (Accessed November 16, 2018.)
APA citation style
Walcott, Charles D, (1911) Cambrian Geology and Paleontology II: No.5--Middle Cambrian Annelids. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_145142&repo=DPLA
MLA citation style
Walcott, Charles D. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_145142&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.