I am using a source that was written by more than 20 authors. Do I need to include all those authors in my reference list entry?
Answer
For a work with up to 20 authors, include all of the names in the reference. When the work has 21 or more authors, include only the first 19 names, an ellipsis, and the final name.
For example:
O’ Donnell, M., Hankey, G. J., Rangarajan, S., Chin, S. L., Rao-Melacini, P., Ferguson, J., Xavier, D., Lisheng, L., Zhang, H., Pais, P., Lopez-Jaramillo, P., Damasceno, A., Langhorne, P., Rosengren, A., Dans, A. L., Elsayed, A., Avezum, A., Mondo, C., Smyth, A., … Yusuf, S. (2021). Variations in knowledge, awareness and treatment of hypertension and stroke risk by country income level. Heart, 107(4), 282–289. https://doi.org/10.1136/heartjnl-2019-316515
In-text citation for this source: O'Donnell et al. (2021) ... OR ... (O'Donnell et al., 2021).