APA

Behr (Peter), . (2009). Outline of The U.S. Economy. : .

Chicago

Behr (Peter), . 2009. Outline of The U.S. Economy. : .

Harvard

Behr (Peter), . (2009). Outline of The U.S. Economy. : .

MLA

Behr (Peter), . Outline of The U.S. Economy. : . 2009.