Não informado. (1939). Dental Laboratory News. Dental Laboratory Association of the State of New York.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Dental Laboratory News. New York: Dental Laboratory Association of the State of New York, 1939.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Dental Laboratory News. Dental Laboratory Association of the State of New York, 1939.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.