The post-script : a comedy in one act :

Chicago citation style
Augier, Emile, 1820-1889. The post-script : a comedy in one act :. c1915]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007650526. (Accessed November 16, 2018.)
APA citation style
Augier, Emile, 1820-1889, (c1915]) The post-script : a comedy in one act :. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/007650526
MLA citation style
Augier, Emile, 1820-1889. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/007650526>.
Note: These citations are programmatically generated and may be incomplete.