French Creek State Park : Berks and Chester Counties, Piedmont Rocks and Hopewell Furnace / prepared by Bureau of Topographic and Geologic Survey ; Jon D. Inners [and] William B. Ferguson.

Chicago citation style
Pennsylvania. Bureau of Topographic and Geologic Survey. French Creek State Park : Berks and Chester Counties, Piedmont Rocks and Hopewell Furnace / prepared by Bureau of Topographic and Geologic Survey ; Jon D. Inners [and] William B. Ferguson.. Retrieved from the Digital Public Library of America, https://archive.org/details/frenchcreekstate00penn_0. (Accessed December 12, 2018.)
APA citation style
Pennsylvania. Bureau of Topographic and Geologic Survey, French Creek State Park : Berks and Chester Counties, Piedmont Rocks and Hopewell Furnace / prepared by Bureau of Topographic and Geologic Survey ; Jon D. Inners [and] William B. Ferguson.. Retrieved from the Digital Public Library of America, https://archive.org/details/frenchcreekstate00penn_0
MLA citation style
Pennsylvania. Bureau of Topographic and Geologic Survey. Retrieved from the Digital Public Library of America <https://archive.org/details/frenchcreekstate00penn_0>.
Note: These citations are programmatically generated and may be incomplete.