Index Theologicus

Citazione Stile APA (7a Edizione)

Singer, M. G. (1980). Is ethics a science? Ought it to be? Zygon, 15(1), 29-42.

Citazione stile Chigago Style (17a edizione)

Singer, Marcus George. "Is Ethics a Science? Ought It to Be?" Zygon 15, no. 1 (1980): 29-42.

Citatione MLA (8a ed.)

Singer, Marcus George. "Is Ethics a Science? Ought It to Be?" Zygon, vol. 15, no. 1, 1980, pp. 29-42.