Dyfyniad APA
Freudenthal, H. (1983). Didactical phenomenology of mathematical structures. Kluwer Academic.
Dyfyniad Arddull Chicago
Freudenthal, Hans. Didactical Phenomenology of Mathematical Structures. Boston: Kluwer Academic, 1983.
Dyfyniad MLA
Freudenthal, Hans. Didactical Phenomenology of Mathematical Structures. Kluwer Academic, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.