APA (7th ed.) Citation

National Federation of Settlements Unemployment Committee, Elderton, M., & Hall, H. (1931). Case studies of unemployment. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

National Federation of Settlements Unemployment Committee, Marion Elderton, and Helen Hall. Case Studies of Unemployment. Philadelphia: University of Pennsylvania Press, 1931.

MLA (9th ed.) Citation

National Federation of Settlements Unemployment Committee, et al. Case Studies of Unemployment. University of Pennsylvania Press, 1931.