Citazione APA

Clarke, M. E., & White, B. E. (1989). Understanding foreign policy: The foreign policy systems approach.

Stile di citazione Chicago

Clarke, Michael; Ed, e Brian; Ed White. Understanding Foreign Policy: The Foreign Policy Systems Approach. England, Edward Elgar, 1989.

Citazione MLA

Clarke, Michael; Ed, e Brian; Ed White. Understanding Foreign Policy: The Foreign Policy Systems Approach. 1989.