[The 17th International Dental Exhibition 1968 at Cologne. Demonstration of progress 2].
D003748:Dental Equipment; D003813:Dentistry; D005085:Exhibitions as Topic; D013674:Technology, Dental
Die XVII. Internationale Dental-Schau 1968 in Köln--Demonstration der Leistung--Konfrontation mit der Entwicklung. (II)