APA (7th ed.) Zitazioa

Lesh, R. A., & Doerr, H. M. (2003). Beyond constructivism. Models and modeling perspectives on mathematics problem solving, learning and teaching. Lawrence Erlbaum Associates.

Chicago Style (17th ed.) Zitazioa

Lesh, Richard A., eta Helen M. Doerr. Beyond Constructivism. Models and Modeling Perspectives on Mathematics Problem Solving, Learning and Teaching. Mahwah: Lawrence Erlbaum Associates, 2003.

MLA (9th ed.) Zitazioa

Lesh, Richard A., eta Helen M. Doerr. Beyond Constructivism. Models and Modeling Perspectives on Mathematics Problem Solving, Learning and Teaching. Lawrence Erlbaum Associates, 2003.