Raper, H. R. (1926). Clinical preventive dentistry: Based on a new type of X-ray examination. Ritter dental manufacturing company, inc..
Lua i Stíl Chicago (17ú heag.)Raper, Howard Riley. Clinical Preventive Dentistry: Based on a New Type of X-ray Examination. Rochester, N. Y.: Ritter dental manufacturing company, inc., 1926.
Lua MLA (8ú heag.)Raper, Howard Riley. Clinical Preventive Dentistry: Based on a New Type of X-ray Examination. Ritter dental manufacturing company, inc., 1926.
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