APA

Krok K., Wydawnictwo Naukowe Scholar, . (2006). Cross-border co-operation of Poland after EU enlargement: focus on the eastern border. Warsaw: "Scholar".

Chicago

Krok Katarzyna, Wydawnictwo Naukowe Scholar, . 2006. Cross-border co-operation of Poland after EU enlargement: focus on the eastern border. Warsaw: "Scholar".

Harvard

Krok K., Wydawnictwo Naukowe Scholar, . (2006). Cross-border co-operation of Poland after EU enlargement: focus on the eastern border. Warsaw: "Scholar".

MLA

Krok Katarzyna, Wydawnictwo Naukowe Scholar, . Cross-border co-operation of Poland after EU enlargement: focus on the eastern border. Warsaw: "Scholar". 2006.