Lycopods of Pennsylvanian age coals: Polysporia

Chicago citation style
Phillips, Tom L, DiMechele, William A, Mahaffy, James F. Lycopods of Pennsylvanian age coals: Polysporia. 1979. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_145285&repo=DPLA. (Accessed November 14, 2018.)
APA citation style
Phillips, Tom L, DiMechele, William A, Mahaffy, James F, (1979) Lycopods of Pennsylvanian age coals: Polysporia. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_145285&repo=DPLA
MLA citation style
Phillips, Tom L, DiMechele, William A, Mahaffy, James F. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3ASILSRO_145285&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.