National Association of Independent Schools. Independent school. [National Association of Independent Schools].
Παραπομπή σε μορφή Chicago (17η εκδ.)National Association of Independent Schools. Independent School. [Boston]: [National Association of Independent Schools].
Παραπομπή σε μορφή MLA (9th εκδ.)National Association of Independent Schools. Independent School. [National Association of Independent Schools].
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.