Research Publications, inc. (1983). City directories of the United States, pre-1860 through 1901: Guide to the microfilm collection. Research Publications.
Chicagoスタイル(17版)引用形式Research Publications, inc. City Directories of the United States, Pre-1860 Through 1901: Guide to the Microfilm Collection. Woodbridge, CT: Research Publications, 1983.
MLA(8版)引用形式Research Publications, inc. City Directories of the United States, Pre-1860 Through 1901: Guide to the Microfilm Collection. Research Publications, 1983.
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