Não informado. (1980). Compendium of Continuing Education in Dentistry. Dental Learning Systems.
Chicago-viite (17. p.)Não informado. Compendium of Continuing Education in Dentistry. Newtown, Pa: Dental Learning Systems, 1980.
MLA-viite (8. p.)Não informado. Compendium of Continuing Education in Dentistry. Dental Learning Systems, 1980.
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