%0 Book Section
%U https://doi.org/10.7560/721180-002
%B Imaginary Lines
%B Border Enforcement and the Origins of Undocumented Immigration, 1882-1930
%T Introduction
%A Patrick Ettinger
%D 2009
%I University of Texas Press
%C New York, USA
%P 1-12
%R doi:10.7560/721180-002
%@ 9780292795167
%[ 2026-04-30