Não informado. (2002). Bulletin of the Virginia State Dental Association. Virginia State Dental Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Virginia State Dental Association. Roanoke, Va: Virginia State Dental Association, 2002.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Virginia State Dental Association. Virginia State Dental Association, 2002.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.