International Association of Educators. International journal of progressive education. International Association of Educators.
Cita Chicago (17th ed.)International Association of Educators. International Journal of Progressive Education. Urbana, Ill.: International Association of Educators.
Cita MLA (9th ed.)International Association of Educators. International Journal of Progressive Education. International Association of Educators.
Atenció: Aquestes cites poden no estar 100% correctes.