Preface.

MLA

Guerreira, Miguel Ángel Jaramillo, and Caroline Brown. “Preface.” Comma, vol. 2018, no. 1/2, Jan. 2020, pp. 9–36. EBSCOhost, https://doi.org/10.3828/comma.2018.2.

APA

Guerreira, M. Á. J., & Brown, C. (2020). Preface. Comma, 2018(1/2), 9–36. https://doi.org/10.3828/comma.2018.2

Chicago

Guerreira, Miguel Ángel Jaramillo, and Caroline Brown. 2020. “Preface.” Comma 2018 (1/2): 9–36. doi:10.3828/comma.2018.2.