Erhardtsen, A. (1978). Evolution of concentration and competition in the Danish newspaper and magazine sector. Office for Official Publications of the European Communities.
Chicago Style (17th ed.) CitationErhardtsen, Aage. Evolution of Concentration and Competition in the Danish Newspaper and Magazine Sector. Luxembourg: Office for Official Publications of the European Communities, 1978.
MLA (9th ed.) CitationErhardtsen, Aage. Evolution of Concentration and Competition in the Danish Newspaper and Magazine Sector. Office for Official Publications of the European Communities, 1978.
Warning: These citations may not always be 100% accurate.