The crusade of Varna a discussion of controversial problems

by Halecki, Oskar
Published: New York, NY | Polish Inst. of Arts and Sciences in America | 1943

A history of Poland

by Halecki, Oskar
Published: London u.a. | Routledge & Kegan Paul | 1983

Poland

Published: New York | Praeger | 1957

The Cambridge history of Poland

Published: Cambridge [u.a.] | Cambridge Univ. Press | 1950-

Jadwiga of Anjou and the Rise of East Central Europe

by Halecki, Oskar
Published: New York | Columbia Univ. Press | 1991