.Herbert, D. T., & .Smith, D. M. (1979). Social problems and the city: Geographical perspectives. Oxford University Press.
Цитирование в стиле Чикаго (17-е изд.).Herbert, David T., и David M. .Smith. Social Problems and the City: Geographical Perspectives. New York : Oxford: Oxford University Press, 1979.
Цитирование MLA (9-е изд.).Herbert, David T., и David M. .Smith. Social Problems and the City: Geographical Perspectives. Oxford University Press, 1979.