Citazione Stile APA (7a Edizione)

Gieysztor, A., & Cękalska, K. (1968). History of Poland. PWN - Polish Scientific Publishers.

Citazione stile Chigago Style (17a edizione)

Gieysztor, Aleksander, e Krystyna Cękalska. History of Poland. Warszawa: PWN - Polish Scientific Publishers, 1968.

Citatione MLA (9a ed.)

Gieysztor, Aleksander, e Krystyna Cękalska. History of Poland. PWN - Polish Scientific Publishers, 1968.