Morowitz, H. J., & Trefil, J. S. (1992). The facts of life: Science and the abortion controversy. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Morowitz, Harold J., agus James S. Trefil. The Facts of Life: Science and the Abortion Controversy. New York: Oxford University Press, 1992.
Lua MLA (9ú heag.)Morowitz, Harold J., agus James S. Trefil. The Facts of Life: Science and the Abortion Controversy. Oxford University Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.