Heads of families at the first census of the United States taken in the year 1790: Maryland.
APA Citation
United States. Bureau of the Census., United States. Census Office. 1st census, 1. (1965). Heads of families at the first census of the United States taken in the year 1790: Maryland. Baltimore: Genealogical Pub. Co..
MLA Citation
United States. Bureau of the Census, and 1790 United States. Census Office. 1st census. Heads of Families At the First Census of the United States Taken In the Year 1790: Maryland. Baltimore: Genealogical Pub. Co., 1965.
Warning: These citations may not always be complete (especially for serials).