Gaya APA

Sandel, M, J. (2007). The case against perfection: Ethics in the age of genetic engineering. . Cambridge: Cambridge Belknap Press of Harvard University Press.

Gaya MLA

Sandel, Michael, J.. "The case against perfection: Ethics in the age of genetic engineering. ". Cambridge: Cambridge Belknap Press of Harvard University Press, 2007. Buku.