Cita APA (7th ed.)
ebrary, Inc, & Biehler, R. (1994). Didactics of mathematics as a scientific discipline. Kluwer Academic Publishers.
Cita Chicago (17th ed.)
ebrary, Inc, i Rolf Biehler. Didactics of Mathematics as a Scientific Discipline. Dordrecht ; Boston: Kluwer Academic Publishers, 1994.
Cita MLA (9th ed.)
ebrary, Inc, i Rolf Biehler. Didactics of Mathematics as a Scientific Discipline. Kluwer Academic Publishers, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.