1990 census of population and housing.

"Issued December 1992."

1990 census of population and housing.

"Issued December 1992."

1990 census of population and housing.

"Issued December 1992."

1990 census of population and housing.

"Issued January 1993."

1990 census of population and housing.

"Issued December 1992."

1990 census of population and housing.

"Issued December 1992."

1990 census of population and housing.

"Issued January 1993."

1990 census of population and housing.

"Issued January 1993."

1990 census of population and housing.

"Issued January 1993."

1990 census of population and housing.

"Issued February 1993."

1990 census of population and housing.

"Issued January 1993."

1980 census of population and housing.

"PHC80-4-49."

1990 census of population and housing.

Chiefly tables.

1980 census of population and housing : users' guide.

"PHC80-R1-A."

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

"PHC80-3-48."