Columbia subject headings:
Harvard subject headings:
Sociology--Methodology
Thomas, William Isaac, 1863- Polish peasant in Europe and America.
Thomas, William Isaac, 1863-1947. Polish peasant in Europe and America.
Znaniecki, Florian, 1882-1958, Polish peasant in Europe and America.
Znaniecki, Florian, 1882-1958. Polish peasant in Europe and America.
Princeton subject headings:
Sociology--Methodology.
Thomas, William Isaac, 1863- The Polish peasant in Europe and America.
Znaniecki, Florian, 1882-1958, The Polish peasant in Europe and America.