1. Carcinoma of the Mouth: Types and Degrees of Malignancy;Broders;Am. J. Roentgenol,1927
2. Histopathology of the Skin;Lever,1961
3. A Textbook of Oral Pathology;Shafer,1963
4. The Skin; A Clinicopathologic Treatise;Allen,1954
5. Pathology of Malignant Tumors Arising in the Nasal and Paranasal Cavities and Maxilla;Ringertz;Acta oto-laryngol,1938