Cita APA

Barney, G. O., Blewett, J., & Barney, K. R. (1993). Global 2000: Revisited what shall we do? Arlington, Va.: Millennium Institute.

Citación estilo Chicago

Barney, Gerald O., Jane Blewett, y Kristen R. Barney. Global 2000: Revisited What Shall We Do? Arlington, Va.: Millennium Institute, 1993.

Cita MLA

Barney, Gerald O., Jane Blewett, y Kristen R. Barney. Global 2000: Revisited What Shall We Do? Arlington, Va.: Millennium Institute, 1993.