"Gang of Four" Congressional Intelligence Notifications.

MLA

Library of Congress. "Gang of Four" Congressional Intelligence Notifications. [Place of publication not identified] : [publisher not identified], 2012.

APA

Library of Congress. (2012). "Gang of Four" Congressional Intelligence Notifications. [Place of publication not identified] : [publisher not identified].

Chicago

Library of Congress. "Gang of Four" Congressional Intelligence Notifications. [Place of publication not identified] : [publisher not identified], 2012.