1. Advanced Periodontal Disease: Surgical and Prosthetic Management;Prichard,1965
2. Periodontal Therapy;Goldman,1964
3. Orban’s Periodontics;Grant,1963
4. A classification of periodontal surgery: An approach based on tissue coverage;Kramer;Periodontics,1966
5. The periodontal flap;Johnson;Periodontal Abst.,1967