Citazione Stile APA (7a Edizione)
Widawski, K., & Wyrzykowski, J. (2017). The Geography of Tourism of Central and Eastern European Countries (2nd Edition.). Springer.
Citazione stile Chigago Style (17a edizione)
Widawski, Krzysztof, e Jerzy Wyrzykowski. The Geography of Tourism of Central and Eastern European Countries. 2nd Edition. Cham: Springer, 2017.
Citatione MLA (9a ed.)
Widawski, Krzysztof, e Jerzy Wyrzykowski. The Geography of Tourism of Central and Eastern European Countries. 2nd Edition. Springer, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.