Cita APA (7a ed.)

Wolfe, A. (1989). Whose keeper?: Social science and moral obligation. University of California Press.

Cita Chicago Style (17a ed.)

Wolfe, Alan. Whose Keeper?: Social Science and Moral Obligation. Berkeley [etc.]: University of California Press, 1989.

Cita MLA (9a ed.)

Wolfe, Alan. Whose Keeper?: Social Science and Moral Obligation. University of California Press, 1989.