Cita APA (7a ed.)

Geroski, P., & Schwalbach, J. (1989). Barriers to entry and intensity of competition in european markets. Office for Official Publications of the European Communities.

Cita Chicago Style (17a ed.)

Geroski, Paul, y Joachim Schwalbach. Barriers to Entry and Intensity of Competition in European Markets. Luxembourg: Office for Official Publications of the European Communities, 1989.

Cita MLA (9a ed.)

Geroski, Paul, y Joachim Schwalbach. Barriers to Entry and Intensity of Competition in European Markets. Office for Official Publications of the European Communities, 1989.