APA   Click to copy
Gross, J. (2014). The usefulness of genealogy newsletters and blogs. Chronicles, 31, 13–13.

Chicago/Turabian   Click to copy
Gross, James. “The Usefulness of Genealogy Newsletters and Blogs.” Chronicles 31 (2014): 13–13.

MLA   Click to copy
Gross, James. “The Usefulness of Genealogy Newsletters and Blogs.” Chronicles, vol. 31, 2014, pp. 13–13.

@article{gross2014a,
  title = {The usefulness of genealogy newsletters and blogs},
  year = {2014},
  journal = {Chronicles},
  pages = {13--13},
  volume = {31},
  author = {Gross, James}
}