For one to three authors, list all names within in-text citations and in the reference list.
(Simpson, Walcott, and Coulthard 2018, 76).
Simpson, Leanne Betasamosake, Rinaldo Walcott, and Glen Coulthard. 2018. "Idle no More and Black Lives Matter: An Exchange (Panel Discussion)." Studies in Social Justice 12, (1): 75-89. https://doi.org/10.26522/ssj.v12i1.1830.
If the article has four to ten authors, list only the first author in the in-text citation, followed by et.al. In the reference list, list up to ten authors.
(Hoffman et al. 2016, 600)
Hoffman, Louis, Nathaniel Granger, Jr., Lisa Vallejos, and Michael Moats. 2016. "An Existential-Humanistic Perspective on Black Lives Matter and Contemporary Protest Movements." Journal of Humanistic Psychology 56, (6): 595-611. https://doi-org.ezproxy.library.ubc.ca/10.1177/0022167816652273.