APA (7th ed.) Citation

Gelca, R., & Andreescu, T. (2017). Putnam and Beyond (2nd ed. 2017.). Springer International Publishing : Imprint: Springer.

Chicago Style (17th ed.) Citation

Gelca, Răzvan, and Titu Andreescu. Putnam and Beyond. 2nd ed. 2017. Cham: Springer International Publishing : Imprint: Springer, 2017.

MLA (8th ed.) Citation

Gelca, Răzvan, and Titu Andreescu. Putnam and Beyond. 2nd ed. 2017. Springer International Publishing : Imprint: Springer, 2017.