Dyfyniad APA

International Association of Educators. International journal of progressive education. International Association of Educators.

Dyfyniad Arddull Chicago

International Association of Educators. International Journal of Progressive Education. Urbana, Ill.: International Association of Educators.

Dyfyniad MLA

International Association of Educators. International Journal of Progressive Education. International Association of Educators.

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