Citazione Stile APA (7a Edizione)

(2005). Doing business with Poland (4-th ed.). GMB Publishing.

Citazione stile Chigago Style (17a edizione)

Doing Business with Poland. 4-th ed. London: GMB Publishing, 2005.

Citatione MLA (9a ed.)

Doing Business with Poland. 4-th ed. GMB Publishing, 2005.