Dyfyniad APA

RIEDESEL, C. (1973). Guiding discovery in elementary school mathematics. Prentice Hall.

Dyfyniad Arddull Chicago

RIEDESEL, C.Alan. Guiding Discovery in Elementary School Mathematics. Englewood cliffs: Prentice Hall, 1973.

Dyfyniad MLA

RIEDESEL, C.Alan. Guiding Discovery in Elementary School Mathematics. Prentice Hall, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.