Gaya APA

Fischer, J, M, &, R, M, &, C, D. (1993). Quinn on double effect: The problem of 'closeness'. . : .

Gaya MLA

Fischer, John, Martin, &, Ravizza,, Mark, &, Copp,, David. "Quinn on double effect: The problem of 'closeness'. ". : , 1993. Majalah.