Cita APA (7a ed.)

Wielhorski, W., & Sapieha, J. (1944). The importance of the Polish eastern provinces for the Polish republic. Książnica polska = The Polish Library.

Cita Chicago Style (17a ed.)

Wielhorski, Władysław, y J. Sapieha. The Importance of the Polish Eastern Provinces for the Polish Republic. Glasgow: Książnica polska = The Polish Library, 1944.

Cita MLA (9a ed.)

Wielhorski, Władysław, y J. Sapieha. The Importance of the Polish Eastern Provinces for the Polish Republic. Książnica polska = The Polish Library, 1944.