Cita APA (7a ed.)

Tollefsen, C. (2004). John Paul II's contibution to catholic bioethics. Springer.

Cita Chicago Style (17a ed.)

Tollefsen, Christopher. John Paul II's Contibution to Catholic Bioethics. Dordrecht, The Netherlands: Springer, 2004.

Cita MLA (9a ed.)

Tollefsen, Christopher. John Paul II's Contibution to Catholic Bioethics. Springer, 2004.