1. Modern Practice in Crown and Bridge Prosthodontics;Johnston,1965
2. Artificial Crown Contours and Gingival Health;Morris;J. Pros. Dent.,1962
3. Complete Crown Form and the Periodontium;Wheeler;J. Pros. Dent.,1961
4. Modern Practice in Crown and Bridge Prosthodontics;Johnston,1965
5. Marginal Seepage Around Acrylic Resin in Gold Crowns;Lamstcin;J. Pros. Dent.,1956