Citazione Stile APA (7a Edizione)

(1979). Ethics and problems of the 21st century. University of Notre Dame Press.

Citazione stile Chigago Style (17a edizione)

Ethics and Problems of the 21st Century. Notre Dame ; London: University of Notre Dame Press, 1979.

Citatione MLA (9a ed.)

Ethics and Problems of the 21st Century. University of Notre Dame Press, 1979.