(1993). 1990 census of population and housing. [electronic resource]. Summary tape file 3B.
Chicago Style (17. basım) Atıf1990 Census of Population and Housing. [electronic Resource]. Summary Tape File 3B. 1993.
MLA (9th ed.) Atıf1990 Census of Population and Housing. [electronic Resource]. Summary Tape File 3B. 1993.
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