Ronald H. Bayor, Neighbors in Conflict: The Irish, Germans, Jews and Italians of New York City, 1929–1941 (1978) See Murray Friedman, What Went Wrong?
Truy cập ngày 13 tháng 1 năm 2017.  ^ Ronald H. Bayor, Neighbors in Conflict: The Irish, Germans, Jews and Italians of New York City, 1929–1941 (1978) ^ See Murray Friedman, What Went Wrong?