Cita APA (7th ed.)

Singer, F. M., Ellerton, N. F., & Cai, J. (2015). Mathematical problem posing: From research to effective practice (1a. ed.). Springer.

Cita Chicago (17th ed.)

Singer, Florence Mihaela, Nerida Fay Ellerton, i Jinfa Cai. Mathematical Problem Posing: From Research to Effective Practice. 1a. ed. Nueva York: Springer, 2015.

Cita MLA (9th ed.)

Singer, Florence Mihaela, et al. Mathematical Problem Posing: From Research to Effective Practice. 1a. ed. Springer, 2015.