Cita APA (7th ed.)
ebrary, Inc, & Lignelli, P. R. (2008). European Union and trade barriers in Europe. Nova Science Publishers.
Cita Chicago (17th ed.)
ebrary, Inc, i Paula R. Lignelli. European Union and Trade Barriers in Europe. New York: Nova Science Publishers, 2008.
Cita MLA (9th ed.)
ebrary, Inc, i Paula R. Lignelli. European Union and Trade Barriers in Europe. Nova Science Publishers, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.