Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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