Johnson, C. N. (1906). Principles and practice of filling teeth (3d ed., rev. and enl.). S.S. White Dental Mfg. Co., Claudius Ash & Sons.
Lua i Stíl Chicago (17ú heag.)Johnson, Charles Nelson. Principles and Practice of Filling Teeth. 3d ed., rev. and enl. Philadelphia, London: S.S. White Dental Mfg. Co., Claudius Ash & Sons, 1906.
Lua MLA (8ú heag.)Johnson, Charles Nelson. Principles and Practice of Filling Teeth. 3d ed., rev. and enl. S.S. White Dental Mfg. Co., Claudius Ash & Sons, 1906.
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