@inbook{Ingersoll1880modernthinkers,
  author    = {Ingersoll, Robert G.},
  title     = {Prof. Van Buren Denslow's \\"Modern Thinkers\\"},
  booktitle = {The Works of Robert G. Ingersoll, Dresden Edition},
  publisher = {C. P. Farrell},
  address   = {New York},
  volume    = {12},
  year      = {1880},
  url       = {https://thegreatagnostic.com/works/modern-thinkers/},
  note      = {Public domain. Dresden Edition identifier: dresden:vol-12:modern-thinkers}
}