Chicago:
Arthur Conan Doyle, "Chapter 1. The Warning," The Valley of Fear, trans. Evans, Sebastian in The Valley of Fear Original Sources, accessed July 1, 2025, http://www.originalsources.com/Document.aspx?DocID=7MHCGFY3WG566PC.
MLA:
Doyle, Arthur Conan. "Chapter 1. The Warning." The Valley of Fear, translted by Evans, Sebastian, in The Valley of Fear, Original Sources. 1 Jul. 2025. http://www.originalsources.com/Document.aspx?DocID=7MHCGFY3WG566PC.
Harvard:
Doyle, AC, 'Chapter 1. The Warning' in The Valley of Fear, trans. . cited in , The Valley of Fear. Original Sources, retrieved 1 July 2025, from http://www.originalsources.com/Document.aspx?DocID=7MHCGFY3WG566PC.