Não informado. (1998). Journal of the Northern California Dental Assistants Association. Northern California Dental Assistants Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of the Northern California Dental Assistants Association. Oakland, Calif: Northern California Dental Assistants Association, 1998.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of the Northern California Dental Assistants Association. Northern California Dental Assistants Association, 1998.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.