APA   Click to copy
Gross, J. (2013). Finding Aid for the Seymour Toll Papers, Drexel University, Thomas Kline School of Law, Legal Research Center. unpublished paper.

Chicago/Turabian   Click to copy
Gross, James. “Finding Aid for the Seymour Toll Papers, Drexel University, Thomas Kline School of Law, Legal Research Center.” Unpublished Paper, 2013.

MLA   Click to copy
Gross, James. “Finding Aid for the Seymour Toll Papers, Drexel University, Thomas Kline School of Law, Legal Research Center.” Unpublished Paper, 2013.

@unpublished{gross2013a,
  title = {Finding Aid for the Seymour Toll Papers,  Drexel University, Thomas Kline School of Law, Legal Research Center},
  year = {2013},
  journal = {unpublished paper},
  author = {Gross, James}
}