Cita APA (7th ed.)

Ginsburgh, V., & Weber, S. (2011). How many languages do we need?: The economics of linguistic diversity. Princeton Univ. Press.

Cita Chicago (17th ed.)

Ginsburgh, Victor, i Shlomo Weber. How Many Languages Do We Need?: The Economics of Linguistic Diversity. Princeton, NJ [u.a.]: Princeton Univ. Press, 2011.

Cita MLA (8th ed.)

Ginsburgh, Victor, i Shlomo Weber. How Many Languages Do We Need?: The Economics of Linguistic Diversity. Princeton Univ. Press, 2011.