Cita APA (7th ed.)

ebrary, Inc, & Caldwell, A. J. (2010). U.S. trade, protectionism and the global economic downturn. Nova Science Publishers, Inc..

Cita Chicago (17th ed.)

ebrary, Inc, i Andrew J. Caldwell. U.S. Trade, Protectionism and the Global Economic Downturn. New York: Nova Science Publishers, Inc., 2010.

Cita MLA (9th ed.)

ebrary, Inc, i Andrew J. Caldwell. U.S. Trade, Protectionism and the Global Economic Downturn. Nova Science Publishers, Inc., 2010.