The Polish Peasant in Europe and America
The Polish Peasant in Europe and America is a book by Florian Znaniecki and William I. Thomas, considered to be one of the classics of sociology. The book is a study of Polish immigrants to the United States and their families, based on personal documents, and was published in five volumes in the years 1918 to 1920.
Source: Wikipedia — The Polish Peasant in Europe and America (CC BY-SA 4.0)