APA (7th ed.) Citation

International Mathematical Olympiad Jacobs University Bremen, SpringerLink (Online service), Gronau, H. O. F., Langmann, H., & Schleicher, D. (2011). 50th IMO-- 50 years of International Mathematical Olympiads. Springer. https://doi.org/10.1007/978-3-642-14565-0

Chicago Style (17th ed.) Citation

International Mathematical Olympiad Jacobs University Bremen, SpringerLink (Online service), Hans-Dietrich O. F. Gronau, Hanns-Heinrich Langmann, and Dierk Schleicher. 50th IMO-- 50 Years of International Mathematical Olympiads. Berlin ; Heidelberg ; New York: Springer, 2011. https://doi.org/10.1007/978-3-642-14565-0.

MLA (9th ed.) Citation

International Mathematical Olympiad Jacobs University Bremen, et al. 50th IMO-- 50 Years of International Mathematical Olympiads. Springer, 2011. https://doi.org/10.1007/978-3-642-14565-0.