1. Hygiene in the dental laboratory;Englehardt;Quintessence Dent Technol,1976
2. Cross-contamination via the prosthodontic laboratory;Katberg;J Prosthet Dent,1974
3. Environmental study of dental laboratories;Clarke;J Calif Dent Assoc,1971
4. Reducing laboratory contamination;Fisher;J Prosthet Dent,1972
5. Occupational Health and Safety in Dental Clinics,1976