Stefan Kieniewicz, "The Poles in America from the 1830's to 1870's. Some reflections on the possibilities of research", Maria J. E. Copson-Niećko, [W:] "Poles in America. Bicentennial essays", Wisconsin 1978 : [recenzja] , Przegląd Historyczny, 1979, 70, 2, s. 364-366