Ehrich, W. E. (1941). Pathology for students and practitioners of dentistry. Lea & Febiger.
Citazione stile Chigago Style (17a edizione)Ehrich, William Ernst. Pathology for Students and Practitioners of Dentistry. Philadelphia: Lea & Febiger, 1941.
Citatione MLA (9a ed.)Ehrich, William Ernst. Pathology for Students and Practitioners of Dentistry. Lea & Febiger, 1941.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.