Educational Research Association. (1920). Journal of Educational Research. Heldref Publications.
Citação do estilo Chicago (17ª ed.)Educational Research Association. Journal of Educational Research. Washington: Heldref Publications, 1920.
Citação MLA (8ª ed.)Educational Research Association. Journal of Educational Research. Heldref Publications, 1920.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.