1. A treatise on pyorrhoea alveolaris (Riggs' disease): a system for its prompt, positive and permanent cure Author(s): Cravens, Junius E., author Publication: Indianapolis, Ind. : W.M. Herriott, [1894] Subject(s): Periodontal DiseasesPeriodontal Diseases -- surgery
2. Handbook of dental anatomy and surgery Author(s): Sewill, Henry. Publication: Philadelphia : P. Blakiston, Son & Co., 1882 Subject(s): DentistrySurgery, OralPeriodontal DiseasesTooth -- anatomy & histology