Cita APA (7a ed.)

Walters, W. A., & Singer, P. (1984). Test-tube babies: A guide to moral questions, present tecniques and future possibilities. University Press.

Cita Chicago Style (17a ed.)

Walters, William A.W., y Peter Singer. Test-tube Babies: A Guide to Moral Questions, Present Tecniques and Future Possibilities. Oxford: University Press, 1984.

Cita MLA (9a ed.)

Walters, William A.W., y Peter Singer. Test-tube Babies: A Guide to Moral Questions, Present Tecniques and Future Possibilities. University Press, 1984.