APA (7e ed.) Bronvermelding

Keith, N. W., & Keith, N. Z. (1988). New perspectives on social class and socioeconomic development in the periphery. Greenwood Press.

Chicago (17e ed.) Bronvermelding

Keith, Nelson W., en Novella Zett Keith. New Perspectives on Social Class and Socioeconomic Development in the Periphery. New York: Greenwood Press, 1988.

MLA (8e ed.) Bronvermelding

Keith, Nelson W., en Novella Zett Keith. New Perspectives on Social Class and Socioeconomic Development in the Periphery. Greenwood Press, 1988.