Languages with membership determined by single letter factors.

MLA

Higgins, Peter M., and Suhear Alwan. “Languages with Membership Determined by Single Letter Factors.” Theoretical Computer Science, vol. 680, June 2017, pp. 15–24. EBSCOhost, https://doi.org/10.1016/j.tcs.2017.04.005.

APA

Higgins, P. M., & Alwan, S. (2017). Languages with membership determined by single letter factors. Theoretical Computer Science, 680, 15–24. https://doi.org/10.1016/j.tcs.2017.04.005

Chicago

Higgins, Peter M., and Suhear Alwan. 2017. “Languages with Membership Determined by Single Letter Factors.” Theoretical Computer Science 680 (June): 15–24. doi:10.1016/j.tcs.2017.04.005.