Cita APA (7a ed.)

Lenz, A. J. (1991). Beyond blue economic horizons: U.S. trade performance and international competitiveness in the 1990s. Praeger.

Cita Chicago Style (17a ed.)

Lenz, Allen J. Beyond Blue Economic Horizons: U.S. Trade Performance and International Competitiveness in the 1990s. New York: Praeger, 1991.

Cita MLA (8a ed.)

Lenz, Allen J. Beyond Blue Economic Horizons: U.S. Trade Performance and International Competitiveness in the 1990s. Praeger, 1991.