Federal population censuses, 1790-1890 :
a catalog of microfilm copies of the schedules.
APA Citation
United States. National Archives and Records Service. (1979). Federal population censuses, 1790-1890: a catalog of microfilm copies of the schedules. Washington: National Archives Trust Fund Board.
MLA Citation
United States. National Archives and Records Service. Federal Population Censuses, 1790-1890: a Catalog of Microfilm Copies of the Schedules. Washington: National Archives Trust Fund Board, 1979.
Warning: These citations may not always be complete (especially for serials).