Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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