Cita APA (7a ed.)

Halecki, O., Gardner, M. M., & Patkaniowska-Corbridge, M. (1942). The history of Poland: An essay in historical synthesis. J. M. Dent & Sons.

Cita Chicago Style (17a ed.)

Halecki, Oskar, Monica Mary Gardner, y Maria Patkaniowska-Corbridge. The History of Poland: An Essay in Historical Synthesis. London: J. M. Dent & Sons, 1942.

Cita MLA (9a ed.)

Halecki, Oskar, et al. The History of Poland: An Essay in Historical Synthesis. J. M. Dent & Sons, 1942.