Richie. Principles of Green Bioethics. Michigan State University Press.
Chicago-čujuhus (17. p.)Richie. Principles of Green Bioethics. Michigan State University Press.
MLA-čujuhus (9. p.)Richie. Principles of Green Bioethics. Michigan State University Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.