1. Complete Crown Form and the Periodontium;Wheeler;J. Prosthet. Dent.,1961
2. An Introduction to Periodontia;Goldman,1969
3. Advances Made in Determining the Local Etiology of Periodontics;Dummett;Periodontics,1966
4. Esthetics and the Gingivae in Full Coverage;Weinberg;J. Prosthet. Dent.,1960