@inbook{Ingersoll1868speechindianapolis,
  author    = {Ingersoll, Robert G.},
  title     = {Speech at Indianapolis (1868)},
  booktitle = {The Works of Robert G. Ingersoll, Dresden Edition},
  publisher = {C. P. Farrell},
  address   = {New York},
  volume    = {9},
  year      = {1868},
  url       = {https://thegreatagnostic.com/works/speech-at-indianapolis-1868/},
  note      = {Public domain. Dresden Edition identifier: dresden:vol-9:speech-at-indianapolis-1868}
}