APA (7th ed.) Citation

Ghanem, D., Sant'Anna, P. H. C., & Wüthrich, K. (2022). Selection and parallel trends.

Chicago Style (17th ed.) Citation

Ghanem, Dalia, Pedro H. C. Sant'Anna, and Kaspar Wüthrich. Selection and Parallel Trends. 2022.

MLA (9th ed.) Citation

Ghanem, Dalia, et al. Selection and Parallel Trends. 2022.