GAO : Government Accountability Office and General Accounting Office.

MLA

Library of Congress. GAO : Government Accountability Office and General Accounting Office. [Place of publication not identified] : [publisher not identified], 2008.

APA

Library of Congress. (2008). GAO : Government Accountability Office and General Accounting Office. [Place of publication not identified] : [publisher not identified].

Chicago

Library of Congress. GAO : Government Accountability Office and General Accounting Office. [Place of publication not identified] : [publisher not identified], 2008.