1. 1960–1961 American Dental Association specifications for dental materials;Paffenbarger,1960
2. Revision of American Dental Association specification no. 4 for inlay casting wax;Beall;J.A.D.A.,1940
3. List of certified dental materials, revised to May 1, 1959;J.A.D.A.,1959
4. A revision of American Dental Association specification no. 3 for dental impression compound;Stanford;J.A.D.A.,1955