Citazione Stile APA (7a Edizione)

Supper, E. (2001). Is there effectively a level playing field for developing country exportsn. United Nations.

Citazione stile Chigago Style (17a edizione)

Supper, Erich. Is There Effectively a Level Playing Field for Developing Country Exportsn. New York: United Nations, 2001.

Citatione MLA (9a ed.)

Supper, Erich. Is There Effectively a Level Playing Field for Developing Country Exportsn. United Nations, 2001.