Cita APA (7th ed.)
Ettinger, P. W. (2009). Imaginary lines: Border enforcement and the origins of undocumented immigration, 1882-1930. University of Texas Press.
Cita Chicago (17th ed.)
Ettinger, Patrick W. Imaginary Lines: Border Enforcement and the Origins of Undocumented Immigration, 1882-1930. Austin: University of Texas Press, 2009.
Cita MLA (9th ed.)
Ettinger, Patrick W. Imaginary Lines: Border Enforcement and the Origins of Undocumented Immigration, 1882-1930. University of Texas Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.