Não informado. School dental service gazette. Department of Health.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. School Dental Service Gazette. Wellington: Department of Health.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. School Dental Service Gazette. Department of Health.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.