Não informado. (2017). Bulletin of the Charles H. Tweed International Foundation. Charles H. Tweed International Foundation for Orthodontic Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Charles H. Tweed International Foundation. Tucson, Ariz: Charles H. Tweed International Foundation for Orthodontic Research, 2017.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Charles H. Tweed International Foundation. Charles H. Tweed International Foundation for Orthodontic Research, 2017.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.