APA-čujuhus (7. p.)
ebrary, Inc, & Biehler, R. (1994). Didactics of mathematics as a scientific discipline. Kluwer Academic Publishers.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Rolf Biehler. Didactics of Mathematics as a Scientific Discipline. Dordrecht ; Boston: Kluwer Academic Publishers, 1994.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Rolf Biehler. Didactics of Mathematics as a Scientific Discipline. Kluwer Academic Publishers, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.