Citazione Stile APA (7a Edizione)

(2006). Competition, competitiveness and sustainable development. Print Group, Daniel Krzanowski.

Citazione stile Chigago Style (17a edizione)

Competition, Competitiveness and Sustainable Development. Szczecin: Print Group, Daniel Krzanowski, 2006.

Citatione MLA (9a ed.)

Competition, Competitiveness and Sustainable Development. Print Group, Daniel Krzanowski, 2006.