(1993). Census of Population and Housing, 1990 [United States] Summary Tape File 3D / United States Department of Commerce. Bureau of the Census. [electronic resource].
Chicago-čujuhus (17. p.)Census of Population and Housing, 1990 [United States] Summary Tape File 3D / United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1993.
MLA-čujuhus (9. p.)Census of Population and Housing, 1990 [United States] Summary Tape File 3D / United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1993.
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