Singer, F. M., Ellerton, N. F., & Cai, J. (2015). Mathematical problem posing: From research to effective practice (1a. ed.). Springer.
Chicago Style (17th ed.) ZitazioaSinger, Florence Mihaela, Nerida Fay Ellerton, eta Jinfa Cai. Mathematical Problem Posing: From Research to Effective Practice. 1a. ed. Nueva York: Springer, 2015.
MLA (9th ed.) ZitazioaSinger, Florence Mihaela, et al. Mathematical Problem Posing: From Research to Effective Practice. 1a. ed. Springer, 2015.
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