SpringerLink (Online service), Gronau, H., Langmann, H., & Schleicher, D. (2011). 50th IMO - 50 Years of International Mathematical Olympiads. Springer Berlin Heidelberg.
Chicago Style (17th ed.) CitationSpringerLink (Online service), Hans-Dietrich Gronau, Hanns-Heinrich Langmann, and Dierk Schleicher. 50th IMO - 50 Years of International Mathematical Olympiads. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011.
MLA (8th ed.) CitationSpringerLink (Online service), et al. 50th IMO - 50 Years of International Mathematical Olympiads. Springer Berlin Heidelberg, 2011.
Warning: These citations may not always be 100% accurate.
