Cita APA (7a ed.)

Ridgway, R., & House, S. H. (2006). The unborn child: Beginning a whole life and overcoming problems of early origin. Karnac Books.

Cita Chicago Style (17a ed.)

Ridgway, Roy, y Simon H. House. The Unborn Child: Beginning a Whole Life and Overcoming Problems of Early Origin. London: Karnac Books, 2006.

Cita MLA (8a ed.)

Ridgway, Roy, y Simon H. House. The Unborn Child: Beginning a Whole Life and Overcoming Problems of Early Origin. Karnac Books, 2006.