Cita APA

Boyd Gavin, & J. Werner. (1980). Comparative regional systems: West and East Europe, North America, The Middle East, and developing Countries. New York, EE.UU: Pergamon Press.

Citación estilo Chicago

Boyd Gavin, y J. Werner. Comparative Regional Systems: West and East Europe, North America, The Middle East, and Developing Countries. New York, EE.UU: Pergamon Press, 1980.

Cita MLA

Boyd Gavin, y J. Werner. Comparative Regional Systems: West and East Europe, North America, The Middle East, and Developing Countries. New York, EE.UU: Pergamon Press, 1980.