Citazione Stile APA (7a Edizione)

Rzymowski, W., & Kennedy, H. E. (1921). Upper Silesia and Poland. International Publication Society.

Citazione stile Chigago Style (17a edizione)

Rzymowski, Wincenty, e Harriette Eleanor Kennedy. Upper Silesia and Poland. Warsaw: International Publication Society, 1921.

Citatione MLA (9a ed.)

Rzymowski, Wincenty, e Harriette Eleanor Kennedy. Upper Silesia and Poland. International Publication Society, 1921.