Não informado. (1966). Research in Education. Educational Research Information Center.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Research in Education. Washington: Educational Research Information Center, 1966.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Research in Education. Educational Research Information Center, 1966.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.