Wolfe, A. (1989). Whose keeper?: Social science and moral obligation. University of Californiarnia Press.
Citazione stile Chigago Style (17a edizione)Wolfe, Alan. Whose Keeper?: Social Science and Moral Obligation. Berkeley; Los Angeles; London: University of Californiarnia Press, 1989.
Citatione MLA (8a ed.)Wolfe, Alan. Whose Keeper?: Social Science and Moral Obligation. University of Californiarnia Press, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.