Gaya APA

(ed), J, D, D, V, C., (ed), E, S. (1998). Identity and statute of human embryo Proceedings of third assembly of the pontifical academy for life (vatican city, february 14-16, 1997) . : libreria editrice vaticana.

Gaya MLA

(ed), Juan, De, Dios, Vial, Correa., (ed), Elio, Sgreccia. "Identity and statute of human embryo Proceedings of third assembly of the pontifical academy for life (vatican city, february 14-16, 1997)". : libreria editrice vaticana, 1998. Text.