Circular.

Chicago citation style
Pennsylvania. Public Service Commission. Circular.. Retrieved from the Digital Public Library of America, https://archive.org/details/circular00penn_4. (Accessed December 13, 2018.)
APA citation style
Pennsylvania. Public Service Commission, Circular.. Retrieved from the Digital Public Library of America, https://archive.org/details/circular00penn_4
MLA citation style
Pennsylvania. Public Service Commission. Retrieved from the Digital Public Library of America <https://archive.org/details/circular00penn_4>.
Note: These citations are programmatically generated and may be incomplete.