Proceedings and addresses at...

Chicago citation style
Pennsylvania-German Society. Proceedings and addresses at.... Retrieved from the Digital Public Library of America, https://archive.org/details/proceedingsaddre07penn_1. (Accessed September 21, 2018.)
APA citation style
Pennsylvania-German Society, Proceedings and addresses at.... Retrieved from the Digital Public Library of America, https://archive.org/details/proceedingsaddre07penn_1
MLA citation style
Pennsylvania-German Society. Retrieved from the Digital Public Library of America <https://archive.org/details/proceedingsaddre07penn_1>.
Note: These citations are programmatically generated and may be incomplete.