Lua APA (7ú heag.)
ebrary, Inc, & Caldwell, A. J. (2010). U.S. trade, protectionism and the global economic downturn. Nova Science Publishers, Inc..
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Andrew J. Caldwell. U.S. Trade, Protectionism and the Global Economic Downturn. New York: Nova Science Publishers, Inc., 2010.
Lua MLA (9ú heag.)
ebrary, Inc, agus Andrew J. Caldwell. U.S. Trade, Protectionism and the Global Economic Downturn. Nova Science Publishers, Inc., 2010.
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