Redfield, Robert, and Milton B. Singer. “The Cultural Role of Cities”. Economic Development and Cultural Change, vol. 3, no. 1, 1954, pp. 53-73, https://doi.org/10.1086/449678.
Redfield, R., & Singer, M. B. (1954). The Cultural Role of Cities. Economic Development and Cultural Change, 3(1), 53-73. https://doi.org/10.1086/449678
Redfield R, Singer MB. The Cultural Role of Cities. Economic Development and Cultural Change. 1954;3(1):53-7.