APA-čujuhus (7. p.)
Caulfield, N. (2010). NAFTA and labor in North America. University of Illinois Press.
Chicago-čujuhus (17. p.)
Caulfield, Norman. NAFTA and Labor in North America. Urbana: University of Illinois Press, 2010.
MLA-čujuhus (9. p.)
Caulfield, Norman. NAFTA and Labor in North America. University of Illinois Press, 2010.
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