Não informado. (1933). Bulletin of the Essex County Dental Society. Essex County Dental Society.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Essex County Dental Society. Newark, NJ: Essex County Dental Society, 1933.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Essex County Dental Society. Essex County Dental Society, 1933.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.