Hanne, D. (1997). "Political Risk": Sources that Assess or Advise on Risks in Foreign Country Business or Investment.
Citazione stile Chigago Style (17a edizione)Hanne, Daniel. "Political Risk": Sources That Assess or Advise on Risks in Foreign Country Business or Investment. 1997.
Citatione MLA (9a ed.)Hanne, Daniel. "Political Risk": Sources That Assess or Advise on Risks in Foreign Country Business or Investment. 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.