Handbook of the Pennsylvania Free Library Commission.

Chicago citation style
Pennsylvania. Free Library Commission. Handbook of the Pennsylvania Free Library Commission.. Retrieved from the Digital Public Library of America, https://archive.org/details/handbookofpennsy00penn_0. (Accessed December 10, 2018.)
APA citation style
Pennsylvania. Free Library Commission, Handbook of the Pennsylvania Free Library Commission.. Retrieved from the Digital Public Library of America, https://archive.org/details/handbookofpennsy00penn_0
MLA citation style
Pennsylvania. Free Library Commission. Retrieved from the Digital Public Library of America <https://archive.org/details/handbookofpennsy00penn_0>.
Note: These citations are programmatically generated and may be incomplete.