Παραπομπή APA

Kahn, . A. J., & Kamerman,Sheila B. (1980). Social services in international perspective: The emergence of the sixth system. Transaction books.

Παραπομπή Chicago Style

Kahn, Alfred J., και Kamerman,Sheila B. Social Services in International Perspective: The Emergence of the Sixth System. London: Transaction books, 1980.

Παραπομπή MLA

Kahn, Alfred J., και Kamerman,Sheila B. Social Services in International Perspective: The Emergence of the Sixth System. Transaction books, 1980.