Fossil plants from the anthracite coal fields of eastern Pennsylvania / by John Oleksyshyn.

Chicago citation style
Oleksyshyn, John. Fossil plants from the anthracite coal fields of eastern Pennsylvania / by John Oleksyshyn.. Retrieved from the Digital Public Library of America, https://archive.org/details/fossilplantsfrom00olek. (Accessed December 15, 2018.)
APA citation style
Oleksyshyn, John, Fossil plants from the anthracite coal fields of eastern Pennsylvania / by John Oleksyshyn.. Retrieved from the Digital Public Library of America, https://archive.org/details/fossilplantsfrom00olek
MLA citation style
Oleksyshyn, John. Retrieved from the Digital Public Library of America <https://archive.org/details/fossilplantsfrom00olek>.
Note: These citations are programmatically generated and may be incomplete.