5.4.4 Text Editions Published Online with No Print Counterpart

When citing an original online edition of a primary text, rather than an electronic version of a previously printed edition, include a DOI or URL so readers can identify the exact electronic resource used. A DOI is preferred when available; otherwise, give a stable URL that leads directly to the text.

  1. Isaac Newton, “Keynes MS. 15,” The Chymistry of Isaac Newton, ed. William R. Newman, Indiana University, published June 2010, accessed May 14, 2026, http://purl.dlib.indiana.edu/iudl/newton/ALCH00004.
  2. Newton, “Keynes MS. 15.”

Newton, Isaac. “Keynes MS. 15.” The Chymistry of Isaac Newton. Edited by William R. Newman. Indiana University. Published June 2010. Accessed May 14, 2026. http://purl.dlib.indiana.edu/iudl/newton/ALCH00004.