APA (7th ed.) Citation

Grabowski, Z. (1944). Twenty years of Polish independence. Polish Library.

Chicago Style (17th ed.) Citation

Grabowski, Zbigniew. Twenty Years of Polish Independence. Glasgow: Polish Library, 1944.

MLA (9th ed.) Citation

Grabowski, Zbigniew. Twenty Years of Polish Independence. Polish Library, 1944.

Warning: These citations may not always be 100% accurate.