1980 census of population and housing.

"PHC80-2-118."

1980 census of population and housing.

"PHC80-2-133."

1980 census of population and housing.

"PHC80-2-195."

1980 census of population and housing.

"PHC80-4-49."

1980 census of population and housing : summary characteristics of governmental units and standard metropolitan statistical areas : Virginia.

"PHC80-3-48."

1980 census of population and housing.

"PHC80-E1."

1980 census of population and housing.

"PHC80-R2B."

1980 census of population and housing.

"PHC80-E4."

1980 census of population and housing.

"PHC80-R-2D."

1980 census of population and housing.

"PHC80-R-2E."

1980 census of population and housing.

"PHC80-4-13."

1980 census of population and housing.

"PHC80-4-20."

1980 census of population and housing.

"PHC80-4-26."

1980 census of population and housing.

"PHC80-4-28."

1980 census of population and housing.

"PHC80-4-32."