Halecki, O., Gardner, M. M., & Patkaniowska-Corbridge, M. (1942). The history of Poland: An essay in historical synthesis. J. M. Dent & Sons.
Citazione stile Chigago Style (17a edizione)Halecki, Oskar, Monica Mary Gardner, e Maria Patkaniowska-Corbridge. The History of Poland: An Essay in Historical Synthesis. London: J. M. Dent & Sons, 1942.
Citatione MLA (9a ed.)Halecki, Oskar, et al. The History of Poland: An Essay in Historical Synthesis. J. M. Dent & Sons, 1942.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.