Não informado. (1960). Bulletin of the Illinois Dental Hygienists Association. Illinois Dental Hygienists Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Illinois Dental Hygienists Association. Chicago, Ill: Illinois Dental Hygienists Association, 1960.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Illinois Dental Hygienists Association. Illinois Dental Hygienists Association, 1960.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.