The Changing Demographic Profile of the United States.

MLA

Library of Congress. The Changing Demographic Profile of the United States. [Place of publication not identified] : [publisher not identified], 2011.

APA

Library of Congress. (2011). The Changing Demographic Profile of the United States. [Place of publication not identified] : [publisher not identified].

Chicago

Library of Congress. The Changing Demographic Profile of the United States. [Place of publication not identified] : [publisher not identified], 2011.