United States. Bureau of the Census. United States Census Figures Back to 1630.
Chicagoスタイル(17版)引用形式United States. Bureau of the Census. United States Census Figures Back to 1630.
MLA(9版)引用形式United States. Bureau of the Census. United States Census Figures Back to 1630.
警告: この引用は必ずしも正確ではありません.