APA (7th ed.) Citation

Silva, J. O., Wiese, I., German, D. M., Treude, C., Gerosa, M. A., & Steinmacher, I. (2019). Google Summer of Code: Student Motivations and Contributions.

Chicago Style (17th ed.) Citation

Silva, Jefferson O., Igor Wiese, Daniel M. German, Christoph Treude, Marco A. Gerosa, and Igor Steinmacher. Google Summer of Code: Student Motivations and Contributions. 2019.

MLA (9th ed.) Citation

Silva, Jefferson O., et al. Google Summer of Code: Student Motivations and Contributions. 2019.